C11111333133313232233133313331333132332313112113313331323223311321   >>    C1111133313331323223313331333133313233231311211331333132322331132   <<    C11111333133313232233133313331333132332313112113313331323223311323   >>      C11111333133313232233133313331333132332313112113313331323223311322   >>