const reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
});
let lines = [];
reader.on('line', line => {
  lines.push(line);
});
reader.on('close', () => {
  const array1 = lines[0].split(' ').map(str => parseInt(str, 10))
  const array2 = lines[1].split(' ').map(str => parseInt(str, 10))
  const array3 = lines[2].split(' ').map(str => parseInt(str, 10))
  const serchMrMax = array2.filter(item => item === array1[0])
  const serchMaxValue = array3.filter(item => item === array1[0])
  if (serchMrMax.length >= 1 && serchMaxValue.length >= 1) {
    console.log('MrMaxValu');
  } else if (serchMrMax.length >= 1) {
    console.log('MrMax');
  } else if (serchMaxValue.length >= 1) {
    console.log('MaxValu');
  } else {
    console.log('-1');
  }
});