const reader = require("readline").createInterface({
  input: process.stdin, output: process.stdout
});
let lines = [];
reader.on("line", line => { lines.push(line);
});
reader.on("close", () => {
  let wishProduct = lines[0].split(" ").map((avalue) => {
    return avalue * 1;
  });
  let mrMax = lines[1].split(" ").map((value) => {
    return value * 1;
  });
  let maxValue = lines[2].split(" ").map((cvalue) => {
    return cvalue * 1;
  });
  let mrMaxResult = mrMax.some((mrMaxProductId) =>{
    return mrMaxProductId === wishProduct[0]
  });
  let maxValueResult = maxValue.some((maxValueProductId) =>{
    return maxValueProductId === wishProduct[0]
  });
  if ( mrMaxResult === true && maxValueResult === true) {
    console.log('MrMaxValu')
  } else if (mrMaxResult === true ){
    console.log('MrMax')
  } else if  (maxValueResult === true ){
    console.log('MaxValu')
  } else {
    console.log('-1')
  }
});