C31232233133313221211113313331333131211113313231333223331311212321   >>    C3123223313331322121111331333133313121111331323133322333131121232   <<    C31232233133313221211113313331333131211113313231333223331311212323   >>      C31232233133313221211113313331333131211113313231333223331311212322   >>