max: 1.56*x+2*y-64;
ovo: .375*x+.25*y<=60;
trigo: 31.25*x+31.25*y<=5000;
cenoura: 8.75*x<=1000;
oleo: 15.625*x+15.625*y<=2000;
acucar:18.75*x+18.75*y<=5000;
fermento:1.875*x+1.875*y<=500;
leiteC:24.6875*x+24.6875*y<=3000;
cremeL:12.5*x+12.5*y<=1800;
chocolateP:1.25*x+16.875*y<=1000;
gas:18.75*x+18.75*y<=13000;
guardanapo: x+y<=120;
tempoP:0.041875*x+0.041875*y<=6;
preferencia: x=2y;
int x;
int y;