#include<cstdio>
#include<cmath>
unsigned long n,i,v[100000],a,b,max;
int main(){
    FILE*f=fopen("xormax.in","r");
    FILE*g=fopen("xormax.out","w");
    fscanf(f,"%lu",&n);
    for(i=0;i<n;i++) fscanf(f,"%lu",&v[i]);
    for(i=0;i<n;i++){
        if((v[i]^v[i+1])>max){
            max=v[i]^v[i+1];
            a=v[i];
            b=v[i+1];
        }
    }
    fprintf(g,"%lu %lu %lu",max,a,b);
    fclose(f);
    fclose(g);
    return 0;
}