//acmp.ru 0754 tri_tolstyaka.cpp 7%

#include <stdio.h>

int main(){
	freopen("INPUT.TXT", "r", stdin);
	freopen("OUTPUT.TXT", "w", stdout);

	int M1, M2, M3;
	scanf("%i %i %i", &M1, &M2, &M3);
	int arr[3] = {M1, M2, M3};
	int max = 0;
	for(int i = 0; i < 3; i++){
		if(arr[i] >= 94 && arr[i] <= 727){
			if(arr[i] > max){
			max = arr[i];
			}
		}else {
			printf("Error");
			return 0;
		}
	}
	printf("%i", max);
	return 0;
}