//No.2415 偶数判定！Nafmoくん
#include <stdio.h>
#include <stdlib.h>

int main(void){
    
    char bs1[65], bs2[65]; 
    scanf("%s", bs1);
    scanf("%s", bs2);
    
    long num1 = strtol(bs1, NULL, 2);
    long num2 = strtol(bs2, NULL, 2);
    long N = num1 * num2;
    if(N%2 == 0){
        printf("Even\n");
    }
    else{
        printf("Odd\n");
    }

    return 0;
}