#include<iostream>
using namespace std;

int main()
{
    string str;
    char ans[40][40];
    cin >> str;
    int N = str.size();
    int n1=(N +2) / 3,n3 = n1,n2 = N + 2 - n1 - n3;    
    for(int i = 1;i <= n1;i++)
    {
        for(int j = 1;j <= n2;j++)
        {
            ans[i][j] = ' ';
        }
    }


    int pos = 0;
    for(int i = 1;i <= n1;i++)
    {
        ans[i][1] = str[pos++];
    }
    for(int i = 2;i <= n2;i++)
    {
        ans[n1][i] = str[pos++];
    }
    for(int i = n3 - 1;i >= 1;i--)
    {
        ans[i][n2] = str[pos++];
    }
    for(int i = 1;i <= n1;i++)
    {
        for(int j = 1;j <= n2;j++)
        {
            cout<<ans[i][j];
        }
        cout << endl;
    }
    return 0;
}

n1 n3 开始时候弄反了。。。