#include <stdio.h>

int main(void) {

  double x, y, max;

  printf("Enter two real numbers: ");
  scanf("%lf %lf", &x, &y);

  /* find the maximum of x and y */
  if (x < y)
    max = y;
  else
    max = x;

  printf("The maximum of x and y is %12.8f\n", max);
  
  return 0;
}