#include <stdio.h>
int main() {
    int a, b, c;
    int max;
    
    scanf("%d %d %d", &a, &b, &c);
    
    max = a;
    
    if ((b * b) > (max * max)) {
        max = b;
    }
    if ((c * c) > (max * max)) {
        max = c;
    }
    
    printf("%d\n", max);
    
    return 0;
}