#include <iostream>
#include <stdio.h>
#include <fstream>
#include <string>
#include <vector>
using namespace std;
void print_lengths(std::string const& line)
{
    int counter=0;
    std::vector<int> indices;
    int min_len=30;
    for (unsigned int i = 0; i < line.length(); i++)
    {
        if ( (line[i]!=' ') && (line[i]!='.') && (line[i]!='\n'))
        {
            counter++;
        }
        else
        {
            //cout<<counter<<" ";
            if(counter<min_len)
            {
                min_len=counter;
                indices.clear();
            }
            if(counter==min_len)
            {
                indices.push_back(i-counter);
            }
                counter=0;
        }
    }
    //cout<<min_len;
    for(unsigned int i=0;i<indices.size();++i)
    {
        cout<<indices[i]<<" ";
        cout<<line.substr(indices[i],min_len)<<"\n";
    }
    std::ofstream ost("output.txt");
    for(unsigned int i=0;i<indices.size();++i)
    {
        ost<<indices[i]<<" ";
        ost<<line.substr(indices[i],min_len)<<"\n";
    }
}
int main()
{
    std::string string1;
    std::ifstream ist("input.txt");
    std::getline (ist,string1);
    std::cout << string1<<"\n";
    print_lengths(string1);
    return 0;
}