C11111333133313232233133313331333132332313112113313331311213233321   >>    C1111133313331323223313331333133313233231311211331333131121323332   <<    C11111333133313232233133313331333132332313112113313331311213233323   >>      C11111333133313232233133313331333132332313112113313331311213233322   >>