root
+---a11
|   +---s111
|   |   +---a21
|   |   |   +---s211
|   |   |   |   +---a31
|   |   |   |   |   +---s31
|   |   |   |   |   +---s32
|   |   |   |   +---a32
|   |   |   |       +---s33     G
|   |   |   |       +---s34     G
|   |   |   +---s212
|   |   |       +---a33
|   |   |       |   +---s35     G
|   |   |       |   +---s36     G
|   |   |       +---a34
|   |   |           +---s37     G
|   |   |           +---s38
|   |   +---a22
|   |       +---s221
|   |       |   +---a35
|   |       |   |   +---s39     G
|   |       |   |   +---s310    G
|   |       |   +---a36
|   |       |       +---s311
|   |       |       +---s312
|   |       +---s222
|   |           +---a37
|   |           |   +---s313    G
|   |           |   +---s314    G
|   |           +---a38
|   |               +---s315    G
|   |               +---s316    G
|   +---s112
|       +---a23
|       |   +---s231
|       |   |   +---a39
|       |   |   |   +---s317    G
|       |   |   |   +---s318    G
|       |   |   +---a310
|       |   |       +---s319
|       |   |       +---s320    G
|       |   +---s232
|       |       +---a311
|       |       |   +---s321
|       |       |   +---s322
|       |       +---a312
|       |           +---s323
|       |           +---s324
|       +---a24
|           +---s241
|           |   +---a313
|           |   |   +---s325    G
|           |   |   +---s326
|           |   +---a314
|           |       +---s327    G
|           |       +---s328    G
|           +---s242
|               +---a315
|               |   +---s329
|               |   +---s330
|               +---a316
|                   +---s331
|                   +---s332    G
+---a12
    +---s121
    |   +---a25
    |   |   +---s251
    |   |   |   +---a317
    |   |   |   |   +---s333    G
    |   |   |   |   +---s334    
    |   |   |   +---a318
    |   |   |       +---s335    G   
    |   |   |       +---s336    
    |   |   +---s252
    |   |       +---a319
    |   |       |   +---s337
    |   |       |   +---s338    G
    |   |       +---a320
    |   |           +---s339    G
    |   |           +---s340    G
    |   +---a26
    |       +---s261
    |       |   +---a321
    |       |   |   +---s341    G
    |       |   |   +---s342    G
    |       |   +---a322
    |       |       +---s343    G
    |       |       +---s344
    |       +---s262
    |           +---a323
    |           |   +---s345
    |           |   +---s346    G
    |           +---a324
    |               +---s347    G
    |               +---s348    G
    +---s122
        +---a27
        |   +---s271
        |   |   +---a325
        |   |   |   +---s349    G
        |   |   |   +---s350
        |   |   +---a326
        |   |   |   +---s351    G
        |   |   |   +---s352
        |   +---s272
        |   |   +---a327
        |   |   |   +---s353    G
        |   |   |   +---s354    G
        |   |   +---a328
        |   |   |   +---s355    G
        |   |   |   +---s356
        +---a28
            +---s281
            |   +---a329
            |   |   +---s357    G
            |   |   +---s358    G
            |   +---a330
            |       +---s359    G
            |       +---s360    G
            +---s282
                +---a331
                |   +---s361    G
                |   +---s362    
                +---a332
                    +---s363    G
                    +---s364    G