[Techmaker]

for(mass=[],i=0,y=-30;y<=-10;y+=10){
for(x=0;x<=30;x+=10,i++){
mass[i]=[];
mass[i][0]=x;
mass[i][1]=y;
};
};
for(i2=0;i2<i;i2++){
trace(mass[i2]);
};