C11111333133313232233133313331333132313232233132213231311211331   >>    C1111133313331323223313331333133313231323223313221323131121133   <<    C11111333133313232233133313331333132313232233132213231311211333   >>      C11111333133313232233133313331333132313232233132213231311211332   >>