=IF(LEN(A2)=18,
A2,
IF(LEN(A2)=15,
CONCATENATE(
(IF((EXACT(LOWER((RIGHT(LEFT(A2,5),1))),(RIGHT(LEFT(A2,5),1)))),0,1) &IF((EXACT(LOWER((RIGHT(LEFT(A2,4),1))),(RIGHT(LEFT(A2,4),1)))),0,1) &IF((EXACT(LOWER((RIGHT(LEFT(A2,3),1))),(RIGHT(LEFT(A2,3),1)))),0,1) &IF((EXACT(LOWER((RIGHT(LEFT(A2,2),1))),(RIGHT(LEFT(A2,2),1)))),0,1) &IF((EXACT(LOWER((RIGHT(LEFT(A2,1),1))),(RIGHT(LEFT(A2,1),1)))),0,1)),
(IF((EXACT(LOWER(MID(A2,10,1)),(MID(A2,10,1)))),0,1) &IF((EXACT(LOWER(MID(A2,9,1)),(MID(A2,9,1)))),0,1) &IF((EXACT(LOWER(MID(A2,8,1)),(MID(A2,8,1)))),0,1) &IF((EXACT(LOWER(MID(A2,7,1)),(MID(A2,7,1)))),0,1) &IF((EXACT(LOWER(MID(A2,6,1)),(MID(A2,6,1)))),0,1)),
(IF((EXACT(LOWER((LEFT(RIGHT(A2,1),1))),(LEFT(RIGHT(A2,1),1)))),0,1) &IF((EXACT(LOWER((LEFT(RIGHT(A2,2),1))),(LEFT(RIGHT(A2,2),1)))),0,1) &IF((EXACT(LOWER((LEFT(RIGHT(A2,3),1))),(LEFT(RIGHT(A2,3),1)))),0,1) &IF((EXACT(LOWER((LEFT(RIGHT(A2,4),1))),(LEFT(RIGHT(A2,4),1)))),0,1) &IF((EXACT(LOWER((LEFT(RIGHT(A2,5),1))),(LEFT(RIGHT(A2,5),1)))),0,1)))))