Răspuns :
a+b+c=487
a+b=298
b+c=219
a+b+c=487 => 298+c=487 => c=189
b+189=219 => b=30
30+a=298 => a=268
a+b+c=487
a+b=298
b+c=219
a+b+c=487 => 298+c=487 => c=189
b+189=219 => b=30
30+a=298 => a=268
a+b+c=487
a+b=298
b+c=219
a+b+c=487 => 298+c=487 => c=189
b+189=219 => b=30
30+a=298 => a=268
a+b+c=487
a+b=298
b+c=219
a+b+c=487 => 298+c=487 => c=189
b+189=219 => b=30
30+a=298 => a=268