#include <stdio.h>

int main()
{
	int number;
	float iq;
	char first;

	puts("IQ Calculator");
	printf("Enter your house or apartment number:");
	scanf("%d",&number);
	fflush(stdin);
	printf("Enter the first letter of your last name:");
	scanf("%c",&first);
	puts("Calculating your IQ...");
	iq = number/first;
	if(iq<=50)
		iq+=100;
	if(iq>50 && iq<=80)
		iq*=2;
	printf("This computer guesses your IQ to be %f.\n",iq);
	return(0);
}