function solve(input){
let Day = 0;
let Totallv = 0;
let DayLv = 0;
let TotalBitCoins=0;
let DayFirstB=0;

    for(let i=0; i<input.length; i++){
         DayLv = 0;
         Day++;
         if(Day === 3){
         input[i] = input[i]-input[i]*30/100;
         }
         DayLv = input[i]*67.51;
         Totallv += DayLv;

         while (Totallv>=11949.16){
             if(DayFirstB===0){
                DayFirstB = Day;
             }
           TotalBitCoins++;
           Totallv -= 11949.16;
         }

    }
    console.log(`Bought bitcoins: ${TotalBitCoins}`);
    if(DayFirstB>0){
    console.log(`Day of the first purchased bitcoin: ${DayFirstB}`);
    }
    console.log(`Left money: ${Totallv.toFixed(2)} lv.`);

   }