http://arc002.contest.atcoder.jp/tasks/arc002_2

arc002_2.js

process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function (chunk) {
//console.time('1');
var lines = chunk.split('\n')[0].toString().split('/').join('-');
var result = (function(date) {
	var tmpYear = date.getFullYear();

	while (tmpYear === date.getFullYear() && !canDivide(date)) {
		date.setDate(date.getDate() + 1);
	}

	return [
		date.getFullYear()
		,('0' + (date.getMonth() + 1)).slice(-2)
		,('0' + (date.getDate())).slice(-2)
	].join('/');   				    		

	function canDivide(date) {
		var y = date.getFullYear();
		var m = date.getMonth() + 1;
		var d = date.getDate();
		return (y % (m * d) === 0);
	}

}(new Date(lines)));

console.log(result);

//console.timeEnd('1');
});