nvn [ [ nvn
P WFST XFOO WFOO WFPT
Q XFQT XFSO XFOT XFQO
3 POFOT POFQO XFST POFOO
S POFST PPFOO POFQT POFSO
T PPFQT PPFSO PPFOT PPFQO
U PQFOT PQFQO PPFST PQFOO
V PRFRO PRFST PRFOO PRFPT
W PSFQO PSFRT PSFOO PSFPT
X PTFOT PTFQO PSFST PTFOO
PO PTFTO PUFOT PTFRO PTGST
PP PUGRT PUFTO PUFPT PUFRO
PQ PVFST PWFOO PVFOO PVFPT