# -*- coding: utf-8 -*-

from random import randint

a = randint(1,20)
b = randint(1,20)

print "Additionsaufgabe:"
print str(a) + " + " + str(b) + " = "
c = input()

if c==a+b:
    print "Richtig! Super!"
else:
    print "Leider falsch. :o("