C11111333133313232233133313331333132332313112113313331323133313113313231311211   >>    C1111133313331323223313331333133313233231311211331333132313331311331323131121   <<    C11111333133313232233133313331333132332313112113313331323133313113313231311213   >>      C11111333133313232233133313331333132332313112113313331323133313113313231311212   >>