5-7

#include<stdio.h>

int x;

int f();

int main(void)

{

         int a=1;

 

 

         x=a;

         a=f();

         {

                   int b=2;

                   b=a+b;

                   x=x+b;

         }

         printf("%d%d",a,x);

 

         return 0;

}

 

int f()

{

         int x=4;

 

         return x;

}