print 1+2
print 1 & 3
print -5
print -1 & 1
print 1/4
print 5-3
print 4*6
print 10 % 3
print 2**4
print
print 5>3
print 5<3
print 5>=5
print 5<=4
print 5==5
print 5!=5
print
print 5 & 3
print 5 | 3
print 5 ^ 3
print 5 << 1
print 5 >> 1
print ~5
print
print sqrt (4)
assert 1+2==3