print 2 * 3;
print 3 + 4 * 5;
print 6 + 7 * 8 + 9;
print (3 + 4) * 5;
print ((3 + 2) * (5 + 1));
print ((3 + 2.0) * (5 + 1));
print ((3 + 2) * (5 + 1.0));
print -3 * -5;