poh05_2.js

var readline = require('readline').createInterface(process.stdin, process.stdout);

var inputs = [];
var ONE_WEEK_DAYS = 7;

readline.on('line', function (line) {
    inputs.push(+line);
});

var createWeekInput = function (inputs) {
    var result = [];

    for (var i = 0; i < ONE_WEEK_DAYS; i++) {
        result.push(+inputs.splice(0, 1));
    }

    return result;
};

var createWeeksInput = function (weeks, inputs) {
    var result = [];

    for (var i = 0; i < weeks; i++) {
        result.push(createWeekInput(inputs));
    }

    return result;
};

readline.on('close', function () {
    readline.close();
    process.stdin.destroy();

    var days = inputs.splice(0, 1);
    var weeks = days / ONE_WEEK_DAYS;
    var weeksInput = createWeeksInput(weeks, inputs);

    var results = weeksInput.reduce(function (week1, week2) {
        return week1.map(function (day, index) {
            return day + week2[index];
        });
    });

    results.forEach(function(result){
        console.log(result);
    });
});