x = 1
y = 2
z = 3
if x<y:
    print('x is less than y')
else:
    print('y is less than x')
if x<y  and y<z:
    print('x is less than y,and y is less than z')


x = 2
y = 2
z = 0
if x == y:
    print("x is equal to y")