def reversed_string(a_string):
    return a_string[::-1]

def lychrel(n):
    s = str(n)
    if s == reversed_string(s):
        print(s + ' é palíndromo!')
        return n
    m = int(reversed_string(s))
    c = m + n
    print(s + ' + ' + str(m) + ' = ' + str(c))
    return lychrel(c)

lychrel(468)