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


    int x=3, y=4;
    
    void Fun_1()
    {
         printf("%d ", y);
         }
         void Fun_2(int y)
         {
              y++;
              printf("%d ", y);
              }
              
              void Fun_3(int *x)
              {*x+=2;
              }
              int Fun_4(int a, int y)
              {
                  return x+y;
                  }
                  
                  int main()
                  {
                      int a=5, y=6;
                      x=7;
                      Fun_1();
                      Fun_2(x);
                      printf("%d %d ", x,y);
                      Fun_3(&a);
                      printf("%d ", x,a);
                      printf("%d ", Fun_4(a,y));
                      printf("d %d ", y,a);
    
    
  return 0;
}