#include <cstdio>
#include <iostream>
#include <ctime>
#include <algorithm>
#include <cstdlib>
#define INT long long
using namespace std;

int main()
{
    char f[110], f2[110];
    int a, b;
    scanf("%d%d", &a, &b);
    for(int i = a ; i <= b ; i++ )
    {
        sprintf(f, "ren input%d.txt .%d.in", i, i-a+1);
        system(f);
        puts(f);
        sprintf(f, "ren output%d.txt .%d.out", i, i-a+1);
        puts(f);
        system(f);
    }
}