void main()
{
int x,y,w,z;
printf("please input three number:\n");
scanf("%d,%d,%d",&x,&y,&w);
z=max(x,y,w);
printf("The max number is %d",z);
printf("\n");
printf("ID number:2013304125");
}
int max(int a,int b , int c,int n)
{
n=a;
if (a
}
}
