OJ Board

The problem was in the loop. It should be:
while (scanf("%ld %ld",&n0,&n1)!=EOF)

Hi. I've received a time exceeded (10.025 seconds) when in other computers, the program takes 0 seconds. Could it be the entrance mode? Here is the code. Thanks in advance:
#include "stdio.h"
void main(){
long n,i,x,n0,n1,mc,c=1;
while (scanf("%ld %ld",&n0,&n1)) {
printf ("%ld %ld ",n0,n1);
mc=1 ...