declare -A value=(
    [B]=1 [F]=1 [P]=1 [V]=1
    [C]=2 [G]=2 [J]=2 [K]=2 [Q]=2 [S]=2 [X]=2 [Z]=2
    [D]=3 [T]=3
    [L]=4
    [M]=5 [N]=5
    [R]=6
)