C12313211232233312111111312111133133313331333113113332322331312321   >>    C1231321123223331211111131211113313331333133311311333232233131232   <<    C12313211232233312111111312111133133313331333113113332322331312323   >>      C12313211232233312111111312111133133313331333113113332322331312322   >>