Post Office

function f(input) {
    let [firstPart, secondPart, thirdPart] = input[0].split('|');
    let arrThirdPart = thirdPart.split(' ');
    let firstPartReg = /\$([A-Z]+)\$|\#([A-Z]+)\#|\%([A-Z]+)\%|\*([A-Z]+)\*|\&([A-Z]+)\&/g;
    let secondPartReg = /([0-9][0-9]\:[0-9][0-9])/g;
    let length;
    let charCode;
    let firstLetters;
    let code = new Map();
    let filteredCode = new Map();
    let sentense = [];

    if (firstPart.match(firstPartReg)) {
        let firstLettersArr = firstPart.match(firstPartReg);
        firstLetters = firstLettersArr[0].replace(/[#$%*&]/g, '');
    }
    if (secondPart.match(secondPartReg)) {
        let result = secondPart.match(secondPartReg);
        for (let inputRow of result) {
            [charCode, length] = inputRow.split(':');
            let firstLetter = String.fromCharCode(charCode);
            code.set(firstLetter, length);
        }
    }
    for (let inputRow of firstLetters) {
        if (code.has(inputRow)) {
            let char = code.get(inputRow);
            filteredCode.set(inputRow, Number(char));
        }
    }
    for (let inputRow of filteredCode) {
        for (let inputArr of arrThirdPart) {
            if (inputArr.startsWith(inputRow[0]) && inputArr.length === inputRow[1] + 1) {
                sentense.push(inputArr);
            }
        }
    }

    console.log(sentense.join('\n'));

}