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

void sort(int a[], int size)
{
    int i, j, tmp;
    for(i = 0; i < size -1 ; ++i)
        for(j = i + 1; j < size; ++j)
        if (a[i] > a[j])
    {
        tmp = a[i];
        a[i] = a[j];
        a[j] = tmp;
    }
}

int main(int argc, char **argv) {
    int t[3], a, b, c;

    while(1)
    {
       scanf("%d %d %d", &a, &b, &c);
        if ( a == 0 && b == 0 && c == 0 )
            break;
        t[0] = a;
        t[1] = b;
        t[2] = c;

       sort(t,3);

       printf("%d\n",t[1]);
    }

    return 0;
}