View Code of Problem 54

#include "stdlib.h"
#include "algorithm"
#include "iostream"
#include <cstdio>
#include "string"
#include <iomanip>
#include <map>
#include <set>
#include "math.h"
using namespace std;
map<int, bool> mp;
set<string> st;


int main()
{
	string str; cin >> str;
	for (int i = 0; i < str.length(); i++)
	{
		if (i != 0)cout << " ";
		cout << str[i];
	}
	return 0;
}