Advent of Code

      /^2018$/

Pick a day from the advent calendar to begin:

                                                   25
                                                   24
                                                   23
                                                   22
                                                   21
                                                   20
                                                   19
                                                   18
                                                   17
                                                   16
                                                   15
                                                   14
                                                   13
                                                   12
                                                   11
                                                   10 **
                                                    9 **
                                                    8 **
                                                    7 **
                                                    6 **
                                                    5 **
                                                    4 **
                                                    3 **
                                                    2 **
                  _  _ __ ___ __ _  _               1 **