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

int main(int argc, char **argv, char **envp)
{
	char buffer[10];
	int n, m;

	if (argc < 3)
		exit(1);
	n = atoi(argv[1]);
	if (n <= 0)
		exit(2);
	m = atoi(argv[2]);
	if (m >= n)
		exit(0);
	snprintf(buffer, sizeof(buffer), "%d", m+1);
	argv[2] = buffer;
	execve("./a.out", argv, envp);
	exit(3);
}