var lines = require("fs").readFileSync("/dev/stdin", "utf8").split("\n");
var A = lines[0];
var B = lines[1];

var lastA = parseInt(A.slice(-1));
var lastB = parseInt(B.slice(-1));

if(lastA === 1 && lastB === 1){
    console.log("Odd");
} else {
    console.log("Even");
}