#include <iostream>
using namespace std;

int main()
{
    string 2;
    getline(cin, s);
    
    for(char c: 2)
    {
        if(!isalpha (c) && c!=' ')
        {
            cout<<"Invalid input";
            return 0;
        }
    }
    string w[100];
    int n = 0, maxLen = 0;
    for(int i = 0; i<=s.length(); i++)
    {
        if(s[i]==' ' || s[i] == '\0')
        {
            n++;
        }
        else
        {
            w[n] += s[i];
            if(w[n].length()>maxLen)
            maxLen = w[n].length();
        }
    }
    
    for(int i=0; i< maxLen; i++)
    {
        for(int j =0; j<=n; j++)
        {
            if(i<w[j].length())
            {
                cout<<w[j][i];
            }
            else if(j<n)
            {
                cout<<" ";
            }
            cout<<endl;
        }
    }
    return 0;
}