---

#include <stdio.h>

int ildiz(int a) {
  for(int i=0; i<a/2; i++){
  	if(i*i == a){
    	return(i);
    }
  }
}

int main(void) {
	while(1){
    	int t;
        float pi = 3.14;
        printf("Topshiriqni tanlang: ");
        scanf("%d", &t);
        if(t==0){
        	break;
        }
        else if(t==1){
        	int a;
        	printf("1-T. Kvadrat Perimetrini topish. \n Kvadrat tomonini kiriting: ");
            scanf("%d", &a);
            printf("Kvadratning Perimetri %d ga teng!\n", a*4);
        }
		else if(t==2){
        	int a;
        	printf("2-T. Kvadrat Yuzini topish. \n Kvadrat tomonini kiriting: ");
            scanf("%d", &a);
            printf("Kvadratning Yuzi %d ga teng!\n", a*a);
        }
        else if(t==3){
        	int a, b;
        	printf("3-T. To'g'ri to'rtburchakning Yuzini va Perimetrini topish. \n To'g'ri tortburchakning a tomonini kiriting: ");
            scanf("%d", &a);
            printf("To'g'ri tortburchakning b tomonini kiriting: ");
            scanf("%d", &b);
            printf("To'g'ri to'rtburchakning Yuzi %d ga va uning Perimetri %d ga teng!\n", a*b, 2*(a+b));
        }
        else if(t==4){
        	int a;
        	printf("4-T. Aylana uzunligini topish. \n d diametrni kiriting: ");
            scanf("%d", &a);
            printf("Aylananing L uzunligi %d ga teng!\n", pi*a);
        }
        else if(t==5){
        	int a;
        	printf("5-T. Kubning V hajmini topish. \n Kubning qirrasini kiriting: ");
            scanf("%d", &a);
            printf("Kubning V hajmi %d ga teng!\n", a*a*a);
        }
        else if(t==6){
        	int a, b, c;
        	printf("6-T. To'g'ri burchakli Parallelepipedning Hajmi va Sirt Yuzini topish. \n a qirrasini kiriting: ");
            scanf("%d", &a);
            printf("b qirrasini kiriting: ");
            scanf("%d", &b);
            printf("c qirrasini kiriting: ");
            scanf("%d", &c);
            printf("Parallelepipedning Hajmi %d ga va uning Sirt Yuzi %d ga teng!\n", a*b*c, 2*(a*b+b*c+a*c));
        }
        else if(t==7){
        	int a;
        	printf("7-T. Aylana Uzunligini va Yuzini topish. \n r radiusni kiriting: ");
            scanf("%d", &a);
            printf("Aylananing L uzunligi %d ga va uning Yuzasi %d ga teng!\n", pi*a*2, pi*a*a);
        }
        else if(t==8){
        	int a, b;
        	printf("8-T. Ikki sonning o'rta arifmetigini topish. \n 1-sonni kiriting: ");
            scanf("%d", &a);
            printf("2-sonni kiriting: ");
            scanf("%d", &b);
            printf("Ikki sonning o'rta arifmetigi %d ga teng!\n", (a+b)/2);
        }
		else if(t==9){
        	int a, b;
        	printf("9-T. Ikki sonning o'rta arifmetigini topish. \n 1-sonni kiriting: ");
            scanf("%d", &a);
            printf("2-sonni kiriting: ");
            scanf("%d", &b);
            printf("Ikki sonning o'rta arifmetigi %d ga teng!\n", (a+b)/2);
        }
    }
}