1: C 2: COMMON /RINDEX/ WHOUS,LROOM,CELLA 3: COMMON /RINDEX/ MTROL,MAZE1 4: COMMON /RINDEX/ MGRAT,MAZ15 5: COMMON /RINDEX/ FORE1,FORE3,CLEAR,RESER 6: COMMON /RINDEX/ STREA,EGYPT,ECHOR 7: COMMON /RINDEX/ TSHAF 8: COMMON /RINDEX/ BSHAF,MMACH,DOME,MTORC 9: COMMON /RINDEX/ CAROU 10: COMMON /RINDEX/ RIDDL,LLD2,TEMP1,TEMP2,MAINT 11: COMMON /RINDEX/ BLROO,TREAS,RIVR1,RIVR2,RIVR3,MCYCL 12: COMMON /RINDEX/ RIVR4,RIVR5,FCHMP,FALLS,MBARR 13: COMMON /RINDEX/ MRAIN,POG,VLBOT,VAIR1,VAIR2,VAIR3,VAIR4 14: COMMON /RINDEX/ LEDG2,LEDG3,LEDG4,MSAFE,CAGER 15: COMMON /RINDEX/ CAGED,TWELL,BWELL,ALICE,ALISM,ALITR 16: COMMON /RINDEX/ MTREE,BKENT,BKVW,BKTWI,BKVAU,BKBOX 17: COMMON /RINDEX/ CRYPT,TSTRS,MRANT,MREYE 18: COMMON /RINDEX/ MRA,MRB,MRC,MRG,MRD,FDOOR 19: COMMON /RINDEX/ MRAE,MRCE,MRCW,MRGE,MRGW,MRDW,INMIR 20: COMMON /RINDEX/ SCORR,NCORR,PARAP,CELL,PCELL,NCELL 21: COMMON /RINDEX/ CPANT,CPOUT,CPUZZ