let input = require('fs').readFileSync('/dev/stdin', 'utf8');
let D = new Date(input.replace('\n',''));
const z = str => ('00' + str).slice(-2);
D.setDate(D.getDate() + 2);
console.log(`${D.getFullYear()}/${z(D.getMonth() + 1)}/${z(D.getDate())}`);