function numberWars (input) {
    let index = 0;
    let nameOf1stPlayer = input[index];
    index++;
    let nameOf2ndPlayer = input[index];
    index++;
    let command = input[index];
    let result1st = 0;
    let result2nd = 0;

    while(command !== "End of game") {
        let cardOf1st = Number(input[index]);
        index++;
        let cardOf2nd = Number(input[index]);
        index++;

        if (cardOf1st > cardOf2nd) {
            result1st += cardOf1st - cardOf2nd;

        } else if (cardOf2nd > cardOf1st) {
            result2nd += cardOf2nd - cardOf1st;

        } else if (cardOf1st === cardOf2nd) {
            console.log("Number wars!");
            cardOf1st = Number(input[index]);
            index++;
            cardOf2nd = Number(input[index]);

           if (cardOf1st > cardOf2nd) {
                console.log(`${nameOf1stPlayer} is winner with ${result1st} points`);
           } else if (cardOf2nd > cardOf1st) {
                console.log(`${nameOf2ndPlayer} is winner with ${result2nd} points`);
           }
           break;
        }

        command = input[index];
    }

    if (command === "End of game") {
        console.log(`${nameOf1stPlayer} has ${result1st} points`);
        console.log(`${nameOf2ndPlayer} has ${result2nd} points`);
    }
}