#define _USE_MATH_DEFINES
#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
#include<string>
#include<iomanip>
#include<numeric>
#include<queue>
#include<deque>
#include<stack>
#include<set>
#include<map>
#include<random>
#include<bitset>
#include<cassert>
#include<complex>
#include<fstream>
#include<cstdlib>
#include<functional>
#include<array>
#include<boost/uuid/detail/md5.hpp>
#include<boost/algorithm/hex.hpp>
using namespace std;
using boost::uuids::detail::md5;
typedef long long ll;
const int mod=998244353;
const int dx[]={1,0,0,-1},dy[]={0,1,-1,0};
string calc(string s){
	md5 hash;
	md5::digest_type digest;
	hash.process_bytes(s.data(),s.size());
	hash.get_digest(digest);
	auto charDigest=reinterpret_cast<char*>(&digest);
	std::string result;
	boost::algorithm::hex(charDigest,charDigest+sizeof(md5::digest_type),std::back_inserter(result));
	for(int i=0;i<result.size();i++)
		if('A'<=result[i]&&result[i]<='F')
			result[i]=result[i]-'A'+'a';
	for(int i=0;i<result.size();i+=8){
		swap(result[i],result[i+6]);
		swap(result[i+1],result[i+7]);
		swap(result[i+2],result[i+4]);
		swap(result[i+3],result[i+5]);
	}
	return result;
}
int main(){
	string s;
	cin>>s;
	cout<<calc(calc(s))<<endl;
}