C11111333133313232233133313331333132313331323321313331323113323321   >>    C1111133313331323223313331333133313231333132332131333132311332332   <<    C11111333133313232233133313331333132313331323321313331323113323323   >>      C11111333133313232233133313331333132313331323321313331323113323322   >>