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


def to_num(hamu):
    num = hamu.replace('hamu', '1')
    num = num.replace('ham', '0')
    return int(num, 2) * 2


def to_hamu(num):
    hamu = bin(num)[2:]
    hamu = hamu.replace('1', 'hamu')
    hamu = hamu.replace('0', 'ham')
    return hamu


n = input()
num = to_num(n)
print(to_hamu(num))