const fs = require("fs");
let inp = (fs.readFileSync("C:\\Users\\Dmitry\\Desktop\\JSS\\13\\input.txt", "utf8")).toLowerCase().split('');
inp.shift(0);
//console.log(inp);
let alf = Array('а', 'б', 'в', 'г', 'д', 'е', 'ё', 'ж', 'з', 'и', 'й', 'к',
    'л', 'м', 'н', 'о', 'п', 'р', 'с', 'т', 'у', 'ф', 'х', 'ц', 'ч', 'ш', 'щ', 'ъ', 'ы', 'ь', 'э', 'ю', 'я', ' ', '!', '?', ',', '.', ':', '-');

function unique(arr) {
    let result = [];
    for (let str of arr) {
        if (!result.includes(str)) {
            result.push(str);
        }
    }
    return result;
}

let Slovar = {};

for (let i = 10; i < 50; i++) {
    Slovar[alf[i - 10]] = i;
}
console.log(Slovar);
let un = unique(inp);

result = "";
//console.log(inp);
for (let el in inp) {
    for (let x in Slovar) {
        if (x === inp[el]) result += Slovar[x]
        if (x === un[el]) console.log(x,"=>", Slovar[x]);
    }
}
console.log(result);

inp = (fs.readFileSync("C:\\Users\\Dmitry\\Desktop\\JSS\\13\\1.txt", "utf8")).split('');

let k = 0;
let check = "";
result = "";

for (let el in inp) {
    check += inp[el];
    k++;
    if (k === 2) {
        for (let x in Slovar) {
            if (check.toString() === Slovar[x].toString()) {
                result += x;
            }
        }
        k = 0;
        check = "";
    }
}
//console.log(inp);
console.log(result);