maze:   .ascii
    # 0123456701234567012345670123456701234567012345670123456701234567
     "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",    # 0
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 1
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 2
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 3
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 4
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 5
     "x                                                              x",    # 6
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 7
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 8
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 9
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 10
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 11
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 12
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 13
     "x                                                              x",    # 14
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 15
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 16
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 17
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 18
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 19
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 20
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 21
     "x                                                              x",    # 22
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 23
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 24
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 25
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 26
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 27
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 28
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 29
     "x                                                              x",    # 30
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 31
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 32
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 33
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 34
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 35
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 36
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 37
     "x                                                              x",    # 38
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 39
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 40
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 41
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 42
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 43
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 44
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 45
     "x                                                              x",    # 46
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 47
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 48
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 49
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 50
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 51
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 52
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 53
     "x                                                              x",    # 54
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 55
     "x xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxxx xxxxxx",    # 56
     "x      xx      xx      xx      xx      xx      xx      xx      x",    # 57
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 58
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 59
     "x x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x xx x  x x",    # 60
     "x xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx xxxx x",    # 61
     "x                                                               ",    # 62
     "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx  "     # 63
    # for each "x", turn the corresponding LED to orange.  The other LEDs should
    # be set to off.