#!/usr/local/bin/tcc -run
#include <string.h>
char *fizz(int n){ return n % 3 ? "" : "Fizz"; }
char *buzz(int n){ return n % 5 ? "" : "Buzz"; }
char *fizzbuzz(char *buf, int n){
  strcpy(buf, fizz(n));
  strcat(buf, buzz(n));
  if (!strlen(buf)) sprintf(buf, "%d", n);
  return buf;
}
#include<stdio.h>


int main(void)

{


	double a, b, c, D;

	
 
	printf("a = ?");


	scanf("%lf", &a);


	printf("b = ?");


	scanf("%lf", &b);


	printf("c = ?");


	scanf("%lf", &c);



	D = (b * b - (4 * a * c));


	printf("D = %f\n",d);



	if(D >= 0){


		printf("jissuukai\n");


		}

	else if(D < 0){


		printf("kyosuukai\n");


		}



	return 0;

}