????????
      ----------
TYXJW ) WCRYCYHX
       -RTJMC
        =====
        XUUTNY
       -XYXGNG
        ======
         XJGWRH
        -XXHYGH
         ======
          MWUTNX
         -MRTMXM
          ======
          ??????

base: 12
symbols: CGHJMNRTUWXY
difficulty: medium