#include<stdio.h>
int main(){
    int alex_score, jordan_score, taylor_score;
    scanf("%d%d%d", &alex_score, &jordan_score, &taylor_score);
    if(alex_score == jordan_score && jordan_score == taylor_score){
        printf("Invalid Input");
    }else if(alex_score =< jordan_score && jordan_score >= taylor_score){
        printf("%d", jordan_score);
    }else{
        printf("%d",taylor_score);
    }
    }
    return 0;
}