function arenaTier(data) {
    let gladiatorPool = {};
    let isOver = false;

    for (let index = 0; index < data.length; index++) {
        if (data[index] === "Ave Cesar") {
            isOver = true;
            break;
        }
        let tokens = data[index].split(" -> ");
        if (tokens.length > 1) {
            let gladiatorName = tokens[0];
            let technique = tokens[1];
            let skill = Number(tokens[2]);
            if (!gladiatorPool.hasOwnProperty(gladiatorName)) {
                gladiatorPool[gladiatorName] = new Map();

            }
            if (gladiatorPool[gladiatorName].has(technique) || (gladiatorPool[gladiatorName].get(technique) < skill)) {


            } else {
                gladiatorPool[gladiatorName].set(technique, skill);
            }

        } else {
            let [gladiatorA, gladiatorB] = tokens[0].split(" vs ");
            if (gladiatorPool.hasOwnProperty(gladiatorA) && gladiatorPool.hasOwnProperty(gladiatorB)) {
                for (let [technique, skill] of Array.from(gladiatorPool[gladiatorA])) {
                    if (gladiatorPool[gladiatorB].has(technique)) {
                        totalSkillPoints(gladiatorA);
                        totalSkillPoints(gladiatorB);
                        if (totalSkillPoints(gladiatorA) > totalSkillPoints(gladiatorB)) {
                            delete gladiatorPool[gladiatorB];
                        } else if (totalSkillPoints(gladiatorA) < totalSkillPoints(gladiatorB)) {
                            delete gladiatorPool[gladiatorA];
                        }
                        isOver = false
                        break;
                    }
                }

            }
        }
    }

    function totalSkillPoints(gladiator) {
        let sum = 0;
        for (let [technique, skill] of Array.from(gladiatorPool[gladiator])) {
            sum += Number(skill);
        }
        return sum;
    }

    if (isOver = true) {
        let totalSkill = {};
        for (let [gladiatorName, skills] of Object.entries(gladiatorPool)) {
            if (totalSkillPoints(gladiatorName) !== 0) {
                totalSkill[gladiatorName] = totalSkillPoints(gladiatorName);
            }
        }
        let firstSorting = Object.entries(totalSkill).sort((arrA, arrB) => {
            return arrB[1] - arrA[1] || arrA[0].localeCompare(arrB[0]);
        });
        for (const [gladiator, totalSkill] of firstSorting) {
            console.log(`${gladiator}: ${totalSkill} skill`);
            let secondSorting = Array.from(gladiatorPool[gladiator]).sort((a, b) => {
                return b[1] - a[1] || a[0].localeCompare(b[0]);
            });
            for (const [technique, skill] of secondSorting) {
                console.log(`- ${technique} <!> ${skill}`);
            }
        }
    }
}