C11111333133313232233133313331333132313331323133313331312111133131231221   >>    C1111133313331323223313331333133313231333132313331333131211113313123122   <<    C11111333133313232233133313331333132313331323133313331312111133131231223   >>      C11111333133313232233133313331333132313331323133313331312111133131231222   >>