#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int size;

    cout << "Welcome to my Multiplication Table Generator." << endl << endl;
    cout << "Enter a size (1-15) of which you want your multiplication table to be: ";
    cin >> size;

    if (size > 15 || size < 0) {
        cout << "Error! You entered a value outside the range (1-15).";
    }

    cout << setw(4) << "" << "|";
    for (int i = 1; i <= size; i++) {
        cout << setw(4) << i;
    }
    cout << endl;

    cout << "____| ";
    for (int i = 1; i <= size; i++) {
        cout << "____";
    }
    cout << endl;

    for (int i = 1; i <= size; i++) {
        cout << setw(4) << i << "|";
        for (int j = 1; j <= size; j++) {
            cout << setw(4) << (j * i);
        }
        cout << endl;
    }

    cin.ignore();
    cin.get();
    return 0;
}