#include<stdio.h>
 #include<process.h> // exit()
 int a(int i)
 {
   if(i==1)
   { 
     printf("Í˳ö³ÌÐòµÄÔËÐÐ\n");
     exit(1);
   }
   return i;
 }

 int main()
 {
   int i;
   printf("ÇëÊäÈëi£º");
   scanf("%d",&i);
   printf("a(i)=%d\n",a(i));
   return 0;
 }