1;
2;
1+2;
1+2*3;
1*2+3;
a = 1 < 3;
b = 2 > 4;
print(a);
print(b);
true || print(b);
false || print(1);
true && print(3);
false && print(4);
print(3*4+5*9);
print(-3+4);
print(-3+-4);