function getInfo(input) {
  let armies = {};
  let armyLeaders = [];

  for (let line of input) {

    if (line.includes(' arrives')) {
      let indexOfArrives = line.indexOf(' arrives');
      let leader = line.slice(0, indexOfArrives);
      if (!armies.hasOwnProperty(leader)) {
        armies[leader] = {
          armiesName: {},
          totalArmyCount: 0
        };
      }
      armyLeaders.push(leader);

    } else if (line.includes(' defeated')) {
      let indexOfDefeated = line.indexOf(' defeated');
      let leader = line.slice(0, indexOfDefeated);
      let indexOfLeader = armyLeaders.indexOf(leader);
      if (armies.hasOwnProperty(leader)) {
        delete armies[leader];
        armyLeaders.splice(indexOfLeader, 1);
      }

    } else if (line.includes(':')) {
      let [leader, army] = line.split(': ');
      let [armyName, armyCount] = army.split(', ');
      if (armies.hasOwnProperty(leader)) {
        if (!armies[leader].armiesName.hasOwnProperty(armyName)) {
          armies[leader].armiesName[armyName] = Number(armyCount);
          armies[leader].totalArmyCount += Number(armyCount);
        }
      }

    } else if (line.includes('+')) {
      let [armyName, armyCount] = line.split(' + ');
      armyLeaders.forEach(leader => {

        for (let army in armies[leader]) {
          if (armies[leader][army].hasOwnProperty(armyName)) {
            armies[leader].armiesName[armyName] += Number(armyCount);
            armies[leader].totalArmyCount += Number(armyCount);
          }
        }

      });
    }
  }

  Object.entries(armies).sort((a, b) => b[1].totalArmyCount - a[1].totalArmyCount)
    .forEach(army => {
      console.log(`${army[0]}: ${army[1].totalArmyCount}`);
      Object.entries(army[1].armiesName).sort((a, b) => b[1] - a[1])
        .forEach(armyName => { console.log(`>>> ${armyName[0]} - ${armyName[1]}`) });
    });
}