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#include"stdio.h"
main()
{
 void swap(int *p1,int *p2);
 int a,b;
 int *pointer_1, *pointer_2;
 scanf("%d,%d",&a,&b);
 pointer_1=&a;
 pointer_2=&b;
 if(a<b) swap(pointer_1,pointer_2);
 printf("\n%d,%d\n",*pointer_1,*pointer_2);




}
 void swap(int *p1,int *p2)
 {
  int *p;
  p=p1;
  p1=p2;
  p2=p;


 }
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void swap(int *p1,int *p2)
{int p;
 p=*p1;
*p1=*p2;
*p2=p;}
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