#!usr/bin/env python
# -*- coding:utf-8 -*-

import sys

if __name__ == '__main__':
    hamu = raw_input()

    if len(hamu) > 50:
        exit(0)

    num = 0

    while 1:
        if hamu == '':
            break
        if hamu.startswith('hamu'):
            hamu = hamu[4:]
            num = num * 2 + 1
        elif hamu.startswith('ham'):
            hamu = hamu[3:]
            num = num * 2
        else:
            print 'Invalid input'
            exit(0)
        #print 'num = ' + str(num)

    num = num * 2

    if num == 0:
        hamu = 'ham'
    else:
        while 1:
            if num == 0:
                break
            if num % 2 == 0:
                hamu = 'ham' + hamu
                num = num / 2
            else:
                hamu = 'hamu' + hamu
                num = (num - 1) / 2

    print hamu