BEGIN {
print 1 / 10 * 10
print 1 / (10 * 10)
print 1 % 10 * 10
print 1 % (10 * 10)
print (10 * 5) / 2
print 10 * (5 / 2)
print 10 - (1 + 3 * 3)
print 10 - (3 * 2 + 1)
a = 5
b = 3
print a - 1 - b
print a + 1 - b
}