function Main (input) {
    input = input.split("\n");
    var ts1 = input[0].split(" ").map(inp => parseInt(inp, 10));
    var A = input[1].split(" ").map(inp => parseInt(inp, 10));
    var B = input[2].split(" ").map(inp => parseInt(inp, 10));
    var X = ts1[0];
    if (A.some(inp => inp == X) && B.some(inp => inp == X)) {
        console.log("MrMaxValu");
    }
    else if (A.some(inp => inp == X)) {
        console.log("MrMax");
    }
    else if (B.some(inp => inp == X)) {
        console.log("MaxValu");
    }
    else {
        console.log("-1");
    }
}

Main(require("fs").readFileSync("/dev/stdin", "utf8"));