<?php

class Scanner
{
    private $arr = [];
    private $count = 0;
    private $pointer = 0;

    /**
     * @return mixed
     */
    public function next() {
        if ($this->pointer >= $this->count) {
            $str = trim(fgets(STDIN));
            $this->arr = explode(' ', $str);
            $this->count = count($this->arr);
            $this->pointer = 0;
        }
        $result = $this->arr[$this->pointer];
        $this->pointer++;
        return $result;
    }

    /**
     * @return bool
     */
    public function hasNext() {
        return $this->pointer < $this->count;
    }

    /**
     * @return int
     */
    public function nextInt() {
        return (int)$this->next();
    }

    /**
     * @return float
     */
    public function nextDouble() {
        return (double)$this->next();
    }
}

// 初期化
$sc = new Scanner();
$str = $sc->next();

$time = date('Y/m/d', strtotime('+2 day', strtotime($str)));

echo $time . "\n";