04. Bus - sampleExam

function bus(input) {
    let numTravellers = Number(input.shift());
    let numStops = Number(input.shift());

    for (let i = 1; i <= numStops; i++) {
        let numGetOff = Number(input.shift());
        let numGetIn = Number(input.shift());

        if (i % 2 == 1) {
            numTravellers = numTravellers + numGetIn + 2 - numGetOff;

        } else {
            numTravellers = numTravellers + numGetIn - 2 - numGetOff;
        }
    }
   console.log(`The final number of passengers is : ${numTravellers}`);
}