Test passes if the two columns are the same, IGNORING the suffix.

    X. X
    XI. XI
    XII. XII
    XLIII. XLIII
    LXXVII. LXXVII
    LXXX. LXXX
    XCIX. XCIX
    C. C
    CI. CI
    CCXXII. CCXXII
    DXL. DXL
    CMXCIX. CMXCIX
    M. M
    MV. MV
    MLX. MLX
    MLXV. MLXV
    MDCCC. MDCCC
    MDCCCLX. MDCCCLX
    MDCCCLXV. MDCCCLXV
    MMDLV. MMDLV
    MMM. MMM
    MMMCMXCIX. MMMCMXCIX