#include<stdio.h>
#include<stdlib.h>
char f[100];

int main(void)
{
    int i, n;
    scanf("%d", &n);
    for( i = 1 ; i <= n ; i++ )
    {
        sprintf(f,"ren in%02d.txt .%d.in",i,i);
        system(f);
        sprintf(f,"ren out%02d.txt .%d.out",i,i);
        system(f);
    }
}