HBCHSNFFVOBNOFHFOBNO HF -> O KF -> F NK -> F BN -> O OH -> H VC -> F PK -> B SO -> B PP -> H KO -> F VN -> S OS -> B NP -> C OV -> C CS -> P BH -> P SS -> P BB -> H PH -> V HN -> F KV -> H HC -> B BC -> P CK -> P PS -> O SH -> N FH -> N NN -> P HS -> O CB -> F HH -> F SB -> P NB -> F BO -> V PN -> H VP -> B SC -> C HB -> H FP -> O FC -> H KP -> B FB -> B VK -> F CV -> P VF -> V SP -> K CC -> K HV -> P NC -> N VH -> K PF -> P PB -> S BF -> K FF -> C FV -> V KS -> H VB -> F SV -> F HO -> B FN -> C SN -> F OB -> N KN -> P BV -> H ON -> N NF -> S OF -> P NV -> S VS -> C OO -> C BP -> H BK -> N CP -> N PC -> K CN -> H KB -> B BS -> P KK -> P SF -> V CO -> V CH -> P FO -> B FS -> F VO -> H NS -> F KC -> H VV -> K NO -> P OK -> F PO -> V FK -> H OP -> H PV -> N CF -> P NH -> K SK -> O KH -> P HP -> V OC -> V HK -> F