请问这个return会返回什么
int yunsuan(int a,int b){
return (a+b,a-b,a*b);
}
#include<stdio.h>
int yunsuan(int ,int );
int main()
{
int a,b,c,d,f;
scanf("%d %d",&a,&b);
(c,d,f)=yunsuan(a,b);
printf("%d %d %d",c,d,f);
return 0;
}
int yunsuan(int a,int b)
{
return (a+b,a-b,a*b);
}