#include <iostream>
#include <string>
#include <cmath>
#include <climits>

using namespace std;

int main(int argc, char const *argv[])
{
    string str;
    cin >> str;
    int len = (int)str.size();
    int lb = (int) sqrt(1.0 * len);
    int ub = (int) ceil(sqrt(1.0 * len));
    int ans = INT_MAX;
    int r = 0, c = 0;
    for (int row = lb; row <= ub; row++)
        for (int col = row; col <= ub; col++)
            if (row * col >= len && row * col < ans)
            {
                ans = row * col;
                r = row;
                c = col;
            }
    for (int i = 0; i < c; i++)
    {
        for (int j = 0; j < r; j++)
            if (j*c + i < len)
                cout << str[j*c + i];
        cout << " ";
    }

    return 0;
}