Combine the two sentences about composing signals
Combine the two sentences about composing signals

koamac/ReactiveCocoa,KJin99/ReactiveCocoa,fhchina/ReactiveCocoa,smilypeda/ReactiveCocoa,brasbug/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,libiao88/ReactiveCocoa,sujeking/ReactiveCocoa,ericzhou2008/ReactiveCocoa,jackywpy/ReactiveCocoa,Rupert-RR/ReactiveCocoa,xiaoliyang/ReactiveCocoa,Juraldinio/ReactiveCocoa,goodheart/ReactiveCocoa,windgo/ReactiveCocoa,add715/ReactiveCocoa,yizzuide/ReactiveCocoa,natan/ReactiveCocoa,rpowelll/ReactiveCocoa,mtxs007/ReactiveCocoa,j364960953/ReactiveCocoa,tonyli508/ReactiveCocoa,xiaoliyang/ReactiveCocoa,nikita-leonov/ReactiveCocoa,tornade0913/ReactiveCocoa,chieryw/ReactiveCocoa,SanChain/ReactiveCocoa,zxq3220122/ReactiveCocoa,sdhzwm/ReactiveCocoa,SmartEncounter/ReactiveCocoa,Ricowere/ReactiveCocoa,fhchina/ReactiveCocoa,walkingsmarts/ReactiveCocoa,icepy/ReactiveCocoa,almassapargali/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,ShawnLeee/ReactiveCocoa,chieryw/ReactiveCocoa,bencochran/ReactiveCocoa,goodheart/ReactiveCocoa,clg0118/ReactiveCocoa,FelixYin66/ReactiveCocoa,emodeqidao/ReactiveCocoa,itschaitanya/ReactiveCocoa,natestedman/ReactiveCocoa,jsslai/ReactiveCocoa,JohnJin007/ReactiveCocoa,hj3938/ReactiveCocoa,leelili/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,mtxs007/ReactiveCocoa,CQXfly/ReactiveCocoa,Ethan89/ReactiveCocoa,yoichitgy/ReactiveCocoa,SanChain/ReactiveCocoa,Carthage/ReactiveCocoa,Liquidsoul/ReactiveCocoa,natan/ReactiveCocoa,gengjf/ReactiveCocoa,stupidfive/ReactiveCocoa,Carthage/ReactiveCocoa,Juraldinio/ReactiveCocoa,on99/ReactiveCocoa,jam891/ReactiveCocoa,taylormoonxu/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,bencochran/ReactiveCocoa,Ray0218/ReactiveCocoa,cstars135/ReactiveCocoa,sugar2010/ReactiveCocoa,zzqiltw/ReactiveCocoa,imkerberos/ReactiveCocoa,chao95957/ReactiveCocoa,cnbin/ReactiveCocoa,esttorhe/ReactiveCocoa,SuPair/ReactiveCocoa,Khan/ReactiveCocoa,xiaobing2007/ReactiveCocoa,alvinvarghese/ReactiveCocoa,KuPai32G/ReactiveCocoa,tornade0913/ReactiveCocoa,Pikdays/ReactiveCocoa,zhigang1992/ReactiveCocoa,cogddo/ReactiveCocoa,kevin-zqw/ReactiveCocoa,jrmiddle/ReactiveCocoa,zzqiltw/ReactiveCocoa,ikesyo/ReactiveCocoa,jaylib/ReactiveCocoa,JackLian/ReactiveCocoa,Pikdays/ReactiveCocoa,alvinvarghese/ReactiveCocoa,j364960953/ReactiveCocoa,KuPai32G/ReactiveCocoa,jaylib/ReactiveCocoa,ikesyo/ReactiveCocoa,LHDsimon/ReactiveCocoa,terry408911/ReactiveCocoa,yizzuide/ReactiveCocoa,lixar/ReactiveCocoa,zhiwen1024/ReactiveCocoa,buildo/ReactiveCocoa,ioshger0125/ReactiveCocoa,zxq3220122/ReactiveCocoa,ailyanlu/ReactiveCocoa,huiping192/ReactiveCocoa,kaylio/ReactiveCocoa,calebd/ReactiveCocoa,alvinvarghese/ReactiveCocoa,loupman/ReactiveCocoa,sandyway/ReactiveCocoa,zhaoguohui/ReactiveCocoa,dullgrass/ReactiveCocoa,isghe/ReactiveCocoa,JackLian/ReactiveCocoa,ceekayel/ReactiveCocoa,eliperkins/ReactiveCocoa,tonyli508/ReactiveCocoa,huiping192/ReactiveCocoa,LHDsimon/ReactiveCocoa,howandhao/ReactiveCocoa,loupman/ReactiveCocoa,sdhzwm/ReactiveCocoa,bensonday/ReactiveCocoa,Carthage/ReactiveCocoa,tonyarnold/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,eliperkins/ReactiveCocoa,200895045/ReactiveCocoa,KuPai32G/ReactiveCocoa,ShawnLeee/ReactiveCocoa,emodeqidao/ReactiveCocoa,mattpetters/ReactiveCocoa,chieryw/ReactiveCocoa,cogddo/ReactiveCocoa,Pikdays/ReactiveCocoa,Liquidsoul/ReactiveCocoa,KJin99/ReactiveCocoa,ztchena/ReactiveCocoa,zzzworm/ReactiveCocoa,cstars135/ReactiveCocoa,BlessNeo/ReactiveCocoa,eyu1988/ReactiveCocoa,zhiwen1024/ReactiveCocoa,smilypeda/ReactiveCocoa,zhenlove/ReactiveCocoa,bscarano/ReactiveCocoa,GuitarPlayer-Ma/ReactiveCocoa,xiaobing2007/ReactiveCocoa,kiurentu/ReactiveCocoa,natestedman/ReactiveCocoa,shaohung001/ReactiveCocoa,swizzlr/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,hoanganh6491/ReactiveCocoa,brightcove/ReactiveCocoa,yoichitgy/ReactiveCocoa,stupidfive/ReactiveCocoa,clg0118/ReactiveCocoa,cogddo/ReactiveCocoa,loupman/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,qq644531343/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,hoanganh6491/ReactiveCocoa,takeshineshiro/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,esttorhe/ReactiveCocoa,stupidfive/ReactiveCocoa,dz1111/ReactiveCocoa,calebd/ReactiveCocoa,DreamHill/ReactiveCocoa,qq644531343/ReactiveCocoa,FelixYin66/ReactiveCocoa,jeelun/ReactiveCocoa,yytong/ReactiveCocoa,llb1119/test,jaylib/ReactiveCocoa,koamac/ReactiveCocoa,dachaoisme/ReactiveCocoa,ddc391565320/ReactiveCocoa,kiurentu/ReactiveCocoa,AlanJN/ReactiveCocoa,on99/ReactiveCocoa,xiaobing2007/ReactiveCocoa,imkerberos/ReactiveCocoa,zhaoguohui/ReactiveCocoa,andersio/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,ohwutup/ReactiveCocoa,chao95957/ReactiveCocoa,ailyanlu/ReactiveCocoa,xumaolin/ReactiveCocoa,Farteen/ReactiveCocoa,eyu1988/ReactiveCocoa,victorlin/ReactiveCocoa,jianwoo/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,WEIBP/ReactiveCocoa,ceekayel/ReactiveCocoa,jeelun/ReactiveCocoa,dullgrass/ReactiveCocoa,zhigang1992/ReactiveCocoa,natestedman/ReactiveCocoa,xumaolin/ReactiveCocoa,ioshger0125/ReactiveCocoa,hbucius/ReactiveCocoa,longv2go/ReactiveCocoa,WEIBP/ReactiveCocoa,stevielu/ReactiveCocoa,cnbin/ReactiveCocoa,DreamHill/ReactiveCocoa,OneSmallTree/ReactiveCocoa,200895045/ReactiveCocoa,wpstarnice/ReactiveCocoa,Ricowere/ReactiveCocoa,LHDsimon/ReactiveCocoa,ddc391565320/ReactiveCocoa,takeshineshiro/ReactiveCocoa,eyu1988/ReactiveCocoa,OneSmallTree/ReactiveCocoa,hbucius/ReactiveCocoa,ailyanlu/ReactiveCocoa,walkingsmarts/ReactiveCocoa,nikita-leonov/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,brasbug/ReactiveCocoa,hj3938/ReactiveCocoa,liufeigit/ReactiveCocoa,isghe/ReactiveCocoa,JohnJin007/ReactiveCocoa,brightcove/ReactiveCocoa,cstars135/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,ztchena/ReactiveCocoa,shuxiashusheng/ReactiveCocoa,Eveian/ReactiveCocoa,tipbit/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,monkeydbobo/ReactiveCocoa,jeelun/ReactiveCocoa,cnbin/ReactiveCocoa,Ethan89/ReactiveCocoa,xulibao/ReactiveCocoa,j364960953/ReactiveCocoa,JackLian/ReactiveCocoa,monkeydbobo/ReactiveCocoa,yytong/ReactiveCocoa,Remitly/ReactiveCocoa,terry408911/ReactiveCocoa,vincentiss/ReactiveCocoa,BrooksWon/ReactiveCocoa,Ray0218/ReactiveCocoa,nickcheng/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,brasbug/ReactiveCocoa,calebd/ReactiveCocoa,pzw224/ReactiveCocoa,lixar/ReactiveCocoa,Adlai-Holler/ReactiveCocoa,zzqiltw/ReactiveCocoa,leichunfeng/ReactiveCocoa,monkeydbobo/ReactiveCocoa,AlanJN/ReactiveCocoa,kiurentu/ReactiveCocoa,leichunfeng/ReactiveCocoa,pzw224/ReactiveCocoa,richeterre/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,vincentiss/ReactiveCocoa,gengjf/ReactiveCocoa,windgo/ReactiveCocoa,Khan/ReactiveCocoa,kevin-zqw/ReactiveCocoa,Rupert-RR/ReactiveCocoa,wangqi211/ReactiveCocoa,tonyarnold/ReactiveCocoa,BlessNeo/ReactiveCocoa,koamac/ReactiveCocoa,fanghao085/ReactiveCocoa,emodeqidao/ReactiveCocoa,zxq3220122/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,200895045/ReactiveCocoa,dachaoisme/ReactiveCocoa,sugar2010/ReactiveCocoa,jsslai/ReactiveCocoa,andersio/ReactiveCocoa,gabemdev/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,hbucius/ReactiveCocoa,335g/ReactiveCocoa,zhukaixy/ReactiveCocoa,yonekawa/ReactiveCocoa,beni55/ReactiveCocoa,335g/ReactiveCocoa,shaohung001/ReactiveCocoa,zhukaixy/ReactiveCocoa,zhiwen1024/ReactiveCocoa,dz1111/ReactiveCocoa,valleyman86/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,bensonday/ReactiveCocoa,dz1111/ReactiveCocoa,chao95957/ReactiveCocoa,zzzworm/ReactiveCocoa,swizzlr/ReactiveCocoa,FelixYin66/ReactiveCocoa,sujeking/ReactiveCocoa,jackywpy/ReactiveCocoa,Ray0218/ReactiveCocoa,kaylio/ReactiveCocoa,pzw224/ReactiveCocoa,tipbit/ReactiveCocoa,clg0118/ReactiveCocoa,libiao88/ReactiveCocoa,yytong/ReactiveCocoa,jam891/ReactiveCocoa,yonekawa/ReactiveCocoa,beni55/ReactiveCocoa,isghe/ReactiveCocoa,AllanChen/ReactiveCocoa,mxxiv/ReactiveCocoa,SmartEncounter/ReactiveCocoa,dskatz22/ReactiveCocoa,fanghao085/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,fanghao085/ReactiveCocoa,BrooksWon/ReactiveCocoa,victorlin/ReactiveCocoa,BlessNeo/ReactiveCocoa,wangqi211/ReactiveCocoa,tiger8888/ReactiveCocoa,bscarano/ReactiveCocoa,tornade0913/ReactiveCocoa,towik/ReactiveCocoa,richeterre/ReactiveCocoa,sdhzwm/ReactiveCocoa,SanChain/ReactiveCocoa,Ricowere/ReactiveCocoa,OnTheWay1988/ReactiveCocoa,AlanJN/ReactiveCocoa,ceekayel/ReactiveCocoa,almassapargali/ReactiveCocoa,hilllinux/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,vincentiss/ReactiveCocoa,mxxiv/ReactiveCocoa,howandhao/ReactiveCocoa,qq644531343/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,zhenlove/ReactiveCocoa,bscarano/ReactiveCocoa,luerhouhou/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,tonyli508/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,SuPair/ReactiveCocoa,xulibao/ReactiveCocoa,eliperkins/ReactiveCocoa,dullgrass/ReactiveCocoa,buildo/ReactiveCocoa,almassapargali/ReactiveCocoa,hj3938/ReactiveCocoa,Farteen/ReactiveCocoa,huiping192/ReactiveCocoa,hoanganh6491/ReactiveCocoa,hilllinux/ReactiveCocoa,add715/ReactiveCocoa,on99/ReactiveCocoa,imkerberos/ReactiveCocoa,335g/ReactiveCocoa,Adlai-Holler/ReactiveCocoa,paulyoung/ReactiveCocoa,smilypeda/ReactiveCocoa,nikita-leonov/ReactiveCocoa,luerhouhou/ReactiveCocoa,icepy/ReactiveCocoa,ohwutup/ReactiveCocoa,add715/ReactiveCocoa,towik/ReactiveCocoa,gabemdev/ReactiveCocoa,xumaolin/ReactiveCocoa,sugar2010/ReactiveCocoa,jam891/ReactiveCocoa,liufeigit/ReactiveCocoa,ericzhou2008/ReactiveCocoa,CCOOOOLL/ReactiveCocoa,Liquidsoul/ReactiveCocoa,zhigang1992/ReactiveCocoa,zhaoguohui/ReactiveCocoa,yangyangluoluo/ReactiveCocoa,mxxiv/ReactiveCocoa,tiger8888/ReactiveCocoa,kevin-zqw/ReactiveCocoa,jrmiddle/ReactiveCocoa,PSPDFKit-labs/ReactiveCocoa,leelili/ReactiveCocoa,icepy/ReactiveCocoa,jaylib/ReactiveCocoa,paulyoung/ReactiveCocoa,rpowelll/ReactiveCocoa,DongDongDongDong/ReactiveCocoa,ohwutup/ReactiveCocoa,rpowelll/ReactiveCocoa,mtxs007/ReactiveCocoa,wangqi211/ReactiveCocoa,wpstarnice/ReactiveCocoa,ztchena/ReactiveCocoa,yaoxiaoyong/ReactiveCocoa,terry408911/ReactiveCocoa,zhenlove/ReactiveCocoa,ioshger0125/ReactiveCocoa,llb1119/test,llb1119/test,taylormoonxu/ReactiveCocoa,BrooksWon/ReactiveCocoa,WEIBP/ReactiveCocoa,valleyman86/ReactiveCocoa,tiger8888/ReactiveCocoa,bencochran/ReactiveCocoa,wpstarnice/ReactiveCocoa,yizzuide/ReactiveCocoa,xulibao/ReactiveCocoa,victorlin/ReactiveCocoa,Eveian/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,nickcheng/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,longv2go/ReactiveCocoa,ShawnLeee/ReactiveCocoa,Ricowere/ReactiveCocoa,Khan/ReactiveCocoa,ddc391565320/ReactiveCocoa,brightcove/ReactiveCocoa,AndyZhaoHe/ReactiveCocoa,Pingco/ReactiveCocoa,yonekawa/ReactiveCocoa,stevielu/ReactiveCocoa,nickcheng/ReactiveCocoa,walkingsmarts/ReactiveCocoa,OneSmallTree/ReactiveCocoa,libiao88/ReactiveCocoa,Adlai-Holler/ReactiveCocoa,fhchina/ReactiveCocoa,ReactiveCocoa/ReactiveSwift,mattpetters/ReactiveCocoa,dskatz22/ReactiveCocoa,huiping192/ReactiveCocoa,Juraldinio/ReactiveCocoa,Remitly/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,Ethan89/ReactiveCocoa,luerhouhou/ReactiveCocoa,leelili/ReactiveCocoa,taylormoonxu/ReactiveCocoa,Remitly/ReactiveCocoa,kaylio/ReactiveCocoa,valleyman86/ReactiveCocoa,towik/ReactiveCocoa,ericzhou2008/ReactiveCocoa,zhukaixy/ReactiveCocoa,takeshineshiro/ReactiveCocoa,esttorhe/ReactiveCocoa,itschaitanya/ReactiveCocoa,esttorhe/ReactiveCocoa,buildo/ReactiveCocoa,Farteen/ReactiveCocoa,Pingco/ReactiveCocoa,Eveian/ReactiveCocoa,DreamHill/ReactiveCocoa,paulyoung/ReactiveCocoa,CQXfly/ReactiveCocoa,gengjf/ReactiveCocoa,shaohung001/ReactiveCocoa,sandyway/ReactiveCocoa,SuPair/ReactiveCocoa,andersio/ReactiveCocoa,Pingco/ReactiveCocoa,dskatz22/ReactiveCocoa,KJin99/ReactiveCocoa,tzongw/ReactiveCocoa,beni55/ReactiveCocoa,yoichitgy/ReactiveCocoa,stevielu/ReactiveCocoa,nickcheng/ReactiveCocoa,howandhao/ReactiveCocoa,lixar/ReactiveCocoa,natan/ReactiveCocoa,liufeigit/ReactiveCocoa,longv2go/ReactiveCocoa,jrmiddle/ReactiveCocoa,zzzworm/ReactiveCocoa,tzongw/ReactiveCocoa,windgo/ReactiveCocoa,xiaoliyang/ReactiveCocoa,yangshengchaoios/ReactiveCocoa,RuiAAPeres/ReactiveCocoa,itschaitanya/ReactiveCocoa,AllanChen/ReactiveCocoa,mattpetters/ReactiveCocoa,jianwoo/ReactiveCocoa,Rupert-RR/ReactiveCocoa,JohnJin007/ReactiveCocoa,jackywpy/ReactiveCocoa,leichunfeng/ReactiveCocoa,sujeking/ReactiveCocoa,tzongw/ReactiveCocoa,jianwoo/ReactiveCocoa,goodheart/ReactiveCocoa,bensonday/ReactiveCocoa,jsslai/ReactiveCocoa,sandyway/ReactiveCocoa,CQXfly/ReactiveCocoa,dachaoisme/ReactiveCocoa,juliangrosshauser/ReactiveCocoa,msdgwzhy6/ReactiveCocoa,tonyarnold/ReactiveCocoa,hilllinux/ReactiveCocoa,richeterre/ReactiveCocoa