function solve(input){
   let sities = {};
   let count = 0;
   for(let sity of input){
    let [town, population, gold] = sity.split('||')
       if(town === 'Sail'){
           break;
       }
       if(!sities.hasOwnProperty(town)){
           sities[town] = [];
           sities[town].push(+(population), +(gold));
           count++;
       }else{
           sities[town][0] += +(population);
           sities[town][1] += +(gold);
       }
   }
   for(let command of input){
       if(command === 'End'){
           break;
       }
       let [plunderOrProsper, town, peopleOrGold, gold] = command.split('=>');
       if(plunderOrProsper === 'Plunder'){
           console.log(`${town} plundered! ${gold} gold stolen, ${peopleOrGold} citizens killed.`);
           sities[town][0] -= +(peopleOrGold);
           sities[town][1] -= +(gold);
           if(0 >= sities[town][0] || sities[town][1] <= 0){
               delete sities[town];
               console.log(`${town} has been wiped off the map!`);
               count--;
           }
       }else if(plunderOrProsper === 'Prosper'){
           if(+(peopleOrGold) < 0){
               console.log('Gold added cannot be a negative number!');
           }else{
               sities[town][1] += +(peopleOrGold);
               console.log(`${peopleOrGold} gold added to the city treasury. ${town} now has ${sities[town][1]} gold.`);
           }
       }
   }
   let result = Object.entries(sities);
   result.sort((a, b)=> b[1][1] - a[1][1] || a[0].localeCompare(b[0]));
   if(result === []){
       console.log('Ahoy, Captain! All targets have been plundered and destroyed!');
       return;
   }
   console.log(`Ahoy, Captain! There are ${count} wealthy settlements to go to:`);
    for(let item of result){
        console.log(`${item[0]} -> Population: ${item[1][0]} citizens, Gold: ${item[1][1]} kg`)
    }
}