#include <stdio.h>
#include <stdlib.h>
int main()
{
int x,y;
scanf("%d %d",&x,&y);
int t;
t=x;
x=y;
y=t;
printf("%d,%d\n",x,y);
return 0;
}
#include <stdio.h>
#include <stdlib.h>
int main()
{
int x,y;
scanf("%d %d",&x,&y);
int t;
t=x;
x=y;
y=t;
printf("%d,%d\n",x,y);
return 0;
}