TOTAL_KEYWORDS = 98
MIN_WORD_LENGTH = 3
MAX_WORD_LENGTH = 4
MIN_HASH_VALUE = 2
MAX_HASH_VALUE = 134


def hash(string: str, length: int) -> int:
    asso_values = [
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135,  65,  62,
       61,  58,  57,  54,  47,  46, 135, 135, 135, 135,
      135, 135, 135, 135, 135,  26,   4,   1,   2,  33,
        2, 135, 135,  15,  69,   4,  30,  10,  52,  17,
        3,  34,  13,   0,   5,  29,   7,  69,  18,   6,
       53, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135, 135,
      135, 135, 135, 135, 135, 135, 135, 135, 135 ]

    hval = 0
    if length > 3:
        hval += asso_values[ord(string[3])]
    if length > 2:
        hval += asso_values[ord(string[2])]
    if length > 1:
        hval += asso_values[ord(string[1])+1]
    hval += asso_values[ord(string[0])]
    return hval


wordlist = [
    None,
    None,
    "SBC",
    "SEC",
    "SED",
    "DEC",
    "BCS",
    "BCC",
    "BRK",
    "TRB",
    "DEY",
    "TXS",
    "CLC",
    "CLD",
    "TSB",
    "TAY",
    "PLP",
    "SEI",
    "CLV",
    "PLY",
    None,
    "PHP",
    "DEX",
    None,
    "PHY",
    None,
    "CLI",
    "TAX",
    "TSX",
    "ROR",
    "BRA",
    "PLX",
    "STP",
    "INC",
    None,
    "STY",
    "PHX",
    "TXA",
    "INY",
    "PLA",
    "BEQ",
    "CPY",
    "RTS",
    "ORA",
    "PHA",
    "AND",
    "ROL",
    "STX",
    "LSR",
    "EOR",
    "INX",
    "BBS7",
    "BBS6",
    "CPX",
    "BNE",
    "STA",
    "CMP",
    "RTI",
    "NOP",
    "BBS5",
    "ADC",
    "ASL",
    "BBS4",
    "BBS3",
    "BBR7",
    "BBR6",
    "BBS2",
    "BBS1",
    "BPL",
    "LDY",
    "BBS0",
    "BMI",
    "BBR5",
    "BVS",
    "BVC",
    "BBR4",
    "BBR3",
    None,
    "BIT",
    "BBR2",
    "BBR1",
    "LDX",
    "STZ",
    "BBR0",
    "TYA",
    None,
    None,
    "JSR",
    "WAI",
    "LDA",
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    None,
    "SMB7",
    "SMB6",
    None,
    None,
    None,
    None,
    None,
    None,
    "SMB5",
    None,
    None,
    "SMB4",
    "SMB3",
    "RMB7",
    "RMB6",
    "SMB2",
    "SMB1",
    None,
    None,
    "SMB0",
    None,
    "RMB5",
    "JMP",
    None,
    "RMB4",
    "RMB3",
    None,
    None,
    "RMB2",
    "RMB1",
    None,
    None,
    "RMB0"
    ]

def in_word_set(string: str) -> bool:
    length = len(string)
    if 3 <= length <= 4:
        key = hash(string, length)
        if key <= MAX_HASH_VALUE:
            word = wordlist[key]
            return word and word==string
    return False