#include<stdio.h>
#define Pi 3.14

int main()
{
	double V = 0;
	double S = 0;
	double r = 0;
	
	scanf("%lf",&r);
	
	V = 4 / 3 * r * r * r * Pi;
	S = 4 * Pi * r *r;
	
	printf("r = %lf, V = %lf, S = %lf\n",r,V,S);
	
	return 0;
}

#include<stdio.h>

int main()
{
	int F = 0, C = 26;
	F = 9 * C / 5 + 32;
	
	printf("celsius = 26, fahr = %d",F);
	
	return 0;
}

#include<stdio.h>
#include<math.h>

int main()
{
	double a, b, c;
	a = b = c = 0;
	
	double sum, average, sqrt_, avg;
	sqrt_ = average = sum = avg = 0;
	
	scanf("%lf %lf %lf",&a,&b,&c);
	
	sum = a + b + c;
	average = sum / 3;
	
	avg = a * a + b * b + c * c;
	sqrt_ = sqrt(avg);
	
	printf("sum = %.2lf, avg = %.2lf, quad_sum = %.2lf, sqrt_quad_sum = %.2lf",sum,average,avg,sqrt_);
	
	return 0;
}

#include<stdio.h>

int main()
{
	int inch = 0;
	int foot = 0;
	double height = 0;
	
	scanf("%d %d",&foot,&inch);
	
	height = (foot + inch / 12) * 30.48;
	
	printf("%lf",height);
	
	height /= 100;
	
	return 0;
}

#include<stdio.h>

int main()
{
	char c = 0;
	int n = 0;
	
	scanf("%c",&c);
	
	n = c - '0';
	
	printf("%d",n);
	
	return 0;
}

#include<stdio.h>

int main()
{
	int a, b, c, temp;
	a = b = c = temp = 0;
	int num_1[2] = {0};
	int num_2[2] = {0};
	
	scanf("%d %d",&a,&b);
	
	for (int i = 0; i < 2; i++)
	{
		temp = a % 10;
		a /= 10;
		num_1[i] = temp;
	}
	
	for (int i = 0; i < 2; i++)
	{
		temp = b % 10;
		b /= 10;
		num_2[i] = temp;
	}
	
	for (int i = 0; i < 2; i++)
	{
		switch (i)
		{
			case 0: c += num_1[i] * 10;break;
			case 1: c += num_1[i] * 1000;break;
		}
	}
	
	for (int i = 0; i < 2; i++)
	{
		switch (i)
		{
			case 0: c += num_2[i] * 1;break;
			case 1: c += num_2[i] * 100;break;
		}
	}
	
	printf("%d",c);
	
	return 0;
}