Fixed a bug in sum of two fixnum
Fixed a bug in sum of two fixnum

acenode/gambit,jasperla/gambit,BeImprovised/gambit,acenode/gambit,thewhimer/gambit,BeImprovised/gambit,acenode/gambit,jasperla/gambit,acenode/gambit,BeImprovised/gambit,BeImprovised/gambit,thewhimer/gambit,jasperla/gambit,thewhimer/gambit,jasperla/gambit,thewhimer/gambit,thewhimer/gambit,thewhimer/gambit