#include <iostream>
#include <string>

using namespace std;

const int N =100;
char g[N][N];
int n,n1,n2;

int main(){
    string str;
    cin>>str;

    n = str.size();
    n1 = (n+2)/3;
    n2 = n+2-2*n1;    //求出 n1 n2 n3 N

    int k =0;
    for(int i=0;i<n1;i++) g[i][0] = str[k++];
    for(int i=1;i<n2;i++) g[n1-1][i] = str[k++];
    for(int i=n1-2;i>=0;i--) g[i][n2-1] = str[k++];  
    //填入数据   这里面的下标真的要特别小心  一不小心就错

    for(int i=0;i<n1;i++){
        for(int j=0;j<n2;j++){
            if(g[i][j] != 0)cout<<g[i][j];
            else cout<<" ";    
        }
        cout<<endl;
    //遍历输出    
    }
    return 0;
}