Functon 2.1

#include <stdio.h>

char ch;

    int main(){
        int num,a,b,x;
	void display(int,char);
    do{
        printf("Enter a number (3-9): ");
        scanf("%d",&num);

    }while (num<3 || num>9);
do{

        printf("Enter a Character (A-P): ");
		__fpurge(stdin);
        scanf("%c",&ch);
    }while (ch<'A' || ch>'P');
		display(num,ch);

        return (0);
    }

void display(int x, char y){
	int i,j;
	for(i=0;i<x;i++){
		for(j=0;j<x;j++){
			printf("%c ",ch);

		}
	printf("\n");
		ch++;
	}
	return;
}