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