C111113331333132322331333133313331333132313123313231333132313233313233333111   >>    C11111333133313232233133313331333133313231312331323133313231323331323333311   <<    C111113331333132322331333133313331333132313123313231333132313233313233333113   >>      C111113331333132322331333133313331333132313123313231333132313233313233333112   >>