DIMENSION ISTR(36,12)
       READ(1,100)((ISTR(I,J),J=1,12),I=1,36)
100    FORMAT(12A2)
       PAUSE 1
       CALL OPEN
       DO 20 I=1,36
       DO 16 J=1,12
       IF(ISTR(I,J))2,98,16
  2    K=J-1
       GO TO 18
 16    CONTINUE
       K=12
 18    WRITE(1,101)(ISTR(I,L),L=1,K)
101    FORMAT(4A2,8(A1,7X))
 20    CONTINUE
 98    STOP
       END