#include <stdio.h>
#include <stdlib.h>

//This function is tal-recursive
long counter(long n) 
{ 
    if (n == 0) return 1; 
    if (n%100000==0) printf("%ld\n", n);
    return counter(n-1); 
}

//Usage: a.out NUM
// where NUM is the number of recursion to do.
int main(int argc, char * argv[])
{
    long sf = (long)strtof(argv[1], NULL);
    printf("%d\n", counter(sf));
}