gaini+r+g+c=4039
gaini=140
r-g=19⇒r=g+19
c=3xg
r+g+c=4039-140=3899
g /____/
r /_____/..+19/ }3899
c /_____/____/_____/
4 parti+19=3899
4 parti=3899-19=3880
1 parte=3880:5=776
gaste=776
rate=776+19=795
curci=776x3=2328
gaini+r+g+c=140+ 776+795+2328=4039
