iepuri=i
gaini=g
curci=c
i+g+c=59 l x 4
4xi+4g+4c=4x59=236 l (-)
4xi+2g+2c=130 l (4xi=4 picioare are iepurele; 2 picioare are gaina)
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/ (4-2)g+(4-2)c=236-130
2x(g+c)=106
g+c=106:2
g+c=53
g=c+17
c+17+c=53
2xc=53-17
2xc=36
c=36:2=18 (curci)
18+17=35 gaini
59-35-18=6 iepuri