Codes:

 Level  Code
 ---------------------------
 01     KPTVNUQSRT
 02     RQROVVPWTQ
 03     ORVSTWUKMS
 04     PMVXMQXVOS
 05     VWRPXPSLQQ
 06     UNRUQQQTRM
 07     TNOPVSORWT
 08     TXRUPRNQWO
 09     SSOOQVWNRW
 10     XRTNKVNSSV
 11     WUNQPMRRWO
 12     WUQQRVWSQT
 13     RQVRWXTTSX
 14     ORPPSORVUO
 15     OWNSRORLNT
 16     UTUVOMNLSP
 17     PXSMSTQVOR
 18     QQNRNONVQM
 19     PWUSTQKSPY
 20     VVPQOSLTPN
 21     PSPOONOUOW
 22     RQKRYNXNNV
 22     RTOTOUXWSW
 24     SQQVNPPSOY
 25     RMRQSQNLSO
 26     XPPMQRONMP
 27     SMTUWSWRTS
 28     VVMRPKTRUQ
 29     TQSUONTSRU
 30     LRUUSVRTVT
 31     MPPRLVTONV
 32     OQROUSLPST
 33     RSXUSLRXOL
 34     PMWTROQSSS
 35     SRUQOWVKWR
 36     PRRTWTRSPV
 37     NTPURUXUUW
 38     NMTPVRPOWW
 39     ONKTOPPULS
 40     NSWOLQWMLW