var = 1
while var == 1:
    n = raw_input('Enter a number: ')
    if n == 'stop':
        var = var + 1
        break
    else:
        n = int(n)

    if n % 2 == 0:
        print ('%d is even number' %n)
    else:
        print ('%d is odd number' %n)
    if n > 0:
        print ('%d is positive number' % n)
    elif n == 0:
        print ('%d is zero' % n)
    else:
        print ('%d is negative number')
print 'bye!'