#include <stdio.h>
void main()
{
char c1, c2;
int a, b;
float x, y;
scanf("%d",&a);
printf("a=%d\n",a);
scanf("%d",&b);
printf("b=%d\n",b);
scanf("%f",&x);
printf("x=%.1f\n",x);
scanf("%f",&y);
printf("y=%.2f\n",y);
}