C111113331333132322331333133313331333132322333121111113313231311321311   >>    C11111333133313232233133313331333133313232233312111111331323131132131   <<    C111113331333132322331333133313331333132322333121111113313231311321313   >>      C111113331333132322331333133313331333132322333121111113313231311321312   >>