
"""def iseven(x,f):
    if (f(x) == f(-x)):
        return True
    else:
        return False

def square(n):
    return(n*n)

def cube(n):
    return(n*n*n)


print(iseven(2, square))
print(iseven(2, cube))"""

def print_error(lineno, message="erreror"):
    #return True
  print(%s, "at line", %d % ("message", lineno))

print_error(42)
