Tenka1 Programmer Contest announcement

Two contests [Tenka1 Programmer Contest](https://tenka1-2017.contest.atcoder.jp/) and [Tenka1 Programmer Beginner Contest](https://tenka1-2017-beginner.contest.atcoder.jp/) will be held at the same time. Please check http://tenka1.klab.jp/2017/index.html for details. You can participate in whichever contest you want. (However, you can't register to both competitions.) The last two tasks in ABC are the same as the first two tasks in ARC. - Time: September 30th (Saturday), [21:00 JST](http://www.timeanddate.com/worldclock/fixedtime.html?iso=20170930T2100&p1=248) - Duration: 100 minutes - Number of Tasks: 4 - writer:<a href="/user/DEGwer" class="username"><span class="user-red">DEGwer</span></a> <a href="/user/hasi" class="username"><span class="user-yellow">hasi</span></a> - Rating: 0-2799 for Tenka1 Programmer Contest, 0-1199 for Tenka1 Programmer Beginner Contest The point values will be announced later. We are looking forward to your participation!