#include<stdio.h>
#include<stdlib.h>

int main()
{
	int max, a, b, c, min,solonnhi;
	max = 0;

	printf("nhap a\n nhap b\n nhap c\n");
	scanf("%d%d%d", &a,&b,&c);
	if( a > max)
	max = a;
	if(b > max)
	max = b;
	if(c > max)
	max = c;

	min = a;
	if(b < min)
	min = b;
	if(c < min)
	min = c;

	solonnhi = a + b + c - max - min;
	printf("\nso lon nhi %d", solonnhi);
	return 0;
}