C语言编程基础，求代码

#Include <stdio.h>
int main()
{
      int a,b,t;
      scanf("%d,%d",&a,&b);
      t = a;
      a = b;
      b = t;
      printf("%d,%d",a,b);
      return 0;
}

#include <iostream>
using namespace std;
int main()
{
    int a,b,tmp;
    cin>>a>>b;
    tmp = a;
    a = b;
    b = tmp;
    
    cout<<a<<','<<b;
    return 0;
}