C#Exams 2. Student Cables (on Java Code)

import java.util.Scanner;

public class _2_StudentCables {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        int numN = scan.nextInt();

        int cableCounter = 0;
        int totalLength = 0;
        for (int i = 0; i < numN; i++) {
            int cableLength = scan.nextInt();
            String cableMeasure = scan.next();
            if (cableMeasure.equals("meters")) {
                cableLength *= 100;
            }

            if (cableLength >= 20) {
                totalLength += cableLength;
                cableCounter++;
            }
        }

        if (cableCounter > 1) {
            totalLength -= (cableCounter - 1) * 3;
        }

        int countStudentCables = totalLength / 504;
        int remainingCable = totalLength % 504;

        System.out.println(countStudentCables);
        System.out.println(remainingCable);
    }

}