permutations: add as_cycle method
permutations: add as_cycle method

yukoba/sympy,kumarkrishna/sympy,sahilshekhawat/sympy,abloomston/sympy,dqnykamp/sympy,jerli/sympy,chaffra/sympy,AunShiLord/sympy,Vishluck/sympy,ahhda/sympy,kmacinnis/sympy,ChristinaZografou/sympy,jerli/sympy,chaffra/sympy,Curious72/sympy,yashsharan/sympy,skidzo/sympy,liangjiaxing/sympy,lidavidm/sympy,dqnykamp/sympy,MechCoder/sympy,postvakje/sympy,mcdaniel67/sympy,drufat/sympy,diofant/diofant,toolforger/sympy,Gadal/sympy,postvakje/sympy,wyom/sympy,Titan-C/sympy,farhaanbukhsh/sympy,sahmed95/sympy,debugger22/sympy,moble/sympy,cswiercz/sympy,sahmed95/sympy,AunShiLord/sympy,yashsharan/sympy,sunny94/temp,emon10005/sympy,asm666/sympy,vipulroxx/sympy,Designist/sympy,sahilshekhawat/sympy,mafiya69/sympy,Sumith1896/sympy,amitjamadagni/sympy,abloomston/sympy,garvitr/sympy,sampadsaha5/sympy,madan96/sympy,beni55/sympy,jaimahajan1997/sympy,hargup/sympy,vipulroxx/sympy,hargup/sympy,grevutiu-gabriel/sympy,moble/sympy,ga7g08/sympy,shipci/sympy,shikil/sympy,madan96/sympy,kumarkrishna/sympy,Designist/sympy,atreyv/sympy,moble/sympy,ahhda/sympy,sampadsaha5/sympy,wyom/sympy,hrashk/sympy,Mitchkoens/sympy,ga7g08/sympy,emon10005/sympy,kaichogami/sympy,AkademieOlympia/sympy,sahmed95/sympy,garvitr/sympy,AunShiLord/sympy,atsao72/sympy,jbbskinny/sympy,oliverlee/sympy,hrashk/sympy,atreyv/sympy,sunny94/temp,kaichogami/sympy,abhiii5459/sympy,saurabhjn76/sympy,jamesblunt/sympy,wanglongqi/sympy,lindsayad/sympy,AkademieOlympia/sympy,Arafatk/sympy,Mitchkoens/sympy,Vishluck/sympy,pbrady/sympy,wanglongqi/sympy,jerli/sympy,abloomston/sympy,hrashk/sympy,mcdaniel67/sympy,MechCoder/sympy,aktech/sympy,drufat/sympy,yashsharan/sympy,cccfran/sympy,kevalds51/sympy,pbrady/sympy,asm666/sympy,souravsingh/sympy,mafiya69/sympy,lindsayad/sympy,kaushik94/sympy,lidavidm/sympy,kumarkrishna/sympy,ahhda/sympy,iamutkarshtiwari/sympy,ChristinaZografou/sympy,saurabhjn76/sympy,dqnykamp/sympy,debugger22/sympy,shikil/sympy,sahilshekhawat/sympy,pandeyadarsh/sympy,kevalds51/sympy,shipci/sympy,Sumith1896/sympy,liangjiaxing/sympy,beni55/sympy,shikil/sympy,sunny94/temp,cccfran/sympy,Curious72/sympy,Davidjohnwilson/sympy,chaffra/sympy,Shaswat27/sympy,cccfran/sympy,rahuldan/sympy,kmacinnis/sympy,VaibhavAgarwalVA/sympy,MridulS/sympy,meghana1995/sympy,pandeyadarsh/sympy,kevalds51/sympy,ga7g08/sympy,beni55/sympy,kaushik94/sympy,skidzo/sympy,farhaanbukhsh/sympy,madan96/sympy,bukzor/sympy,rahuldan/sympy,lindsayad/sympy,MridulS/sympy,jamesblunt/sympy,jaimahajan1997/sympy,lidavidm/sympy,liangjiaxing/sympy,meghana1995/sympy,oliverlee/sympy,kaushik94/sympy,VaibhavAgarwalVA/sympy,Arafatk/sympy,wyom/sympy,maniteja123/sympy,garvitr/sympy,shipci/sympy,wanglongqi/sympy,asm666/sympy,Designist/sympy,cswiercz/sympy,Davidjohnwilson/sympy,Titan-C/sympy,Shaswat27/sympy,skirpichev/omg,iamutkarshtiwari/sympy,hargup/sympy,Titan-C/sympy,aktech/sympy,Vishluck/sympy,postvakje/sympy,Arafatk/sympy,maniteja123/sympy,maniteja123/sympy,bukzor/sympy,jbbskinny/sympy,Gadal/sympy,AkademieOlympia/sympy,ChristinaZografou/sympy,bukzor/sympy,toolforger/sympy,amitjamadagni/sympy,atsao72/sympy,Curious72/sympy,jbbskinny/sympy,cswiercz/sympy,abhiii5459/sympy,jaimahajan1997/sympy,saurabhjn76/sympy,mafiya69/sympy,Shaswat27/sympy,skidzo/sympy,atsao72/sympy,jamesblunt/sympy,debugger22/sympy,mcdaniel67/sympy,pandeyadarsh/sympy,grevutiu-gabriel/sympy,pbrady/sympy,vipulroxx/sympy,meghana1995/sympy,grevutiu-gabriel/sympy,MridulS/sympy,atreyv/sympy,abhiii5459/sympy,kaichogami/sympy,farhaanbukhsh/sympy,VaibhavAgarwalVA/sympy,Mitchkoens/sympy,souravsingh/sympy,oliverlee/sympy,kmacinnis/sympy,MechCoder/sympy,yukoba/sympy,sampadsaha5/sympy,iamutkarshtiwari/sympy,drufat/sympy,toolforger/sympy,Davidjohnwilson/sympy,rahuldan/sympy,aktech/sympy,Gadal/sympy,emon10005/sympy,Sumith1896/sympy,souravsingh/sympy,yukoba/sympy