# include <stdio.h>


void main(void){
	double n;

	printf("Enter value for n: ");
	scanf("%lf", &n);

	if ( n < 5.0 )
		printf(" Little or no damage\n");
	else if (n >= 5.0 && n<5.5)
		printf(" Some damage\n");
	else if (n >= 5.5 && n < 6.0)
		printf(" Serious damage: walls may crack or fall\n");
	else if (n >=6.5 && n < 7.5)
		printf(" Disaster: houses and buildings may collapse\n");
	else
		printf(" Catastrophe: most buildings destroyed\n");