package main

import (
	"fmt"
	"time"
)

func main() {
	var y, m, d int
	fmt.Scanf("%d/%d/%d", &y, &m, &d)
	t := time.Date(y, time.Month(m), d, 0, 0, 0, 0, time.Local)
	t2 := t.AddDate(0, 0, 2)
	fmt.Printf("%04d/%02d/%02d\n", t2.Year(), int(t2.Month()), t2.Day())
}