# your code goes here
def ile_pol(n):
return n*n
print(ile_pol(8))
print(ile_pol(13))
print(ile_pol(17))
print(ile_pol(2))
print(ile_pol(21))
print(ile_pol(30))
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCmRlZiBpbGVfcG9sKG4pOgoJcmV0dXJuIG4qbgpwcmludChpbGVfcG9sKDgpKQpwcmludChpbGVfcG9sKDEzKSkKcHJpbnQoaWxlX3BvbCgxNykpCnByaW50KGlsZV9wb2woMikpCnByaW50KGlsZV9wb2woMjEpKQpwcmludChpbGVfcG9sKDMwKSk=