C3132121111331312113313331333133313331333132313231333133323223311   >>    C313212111133131211331333133313331333133313231323133313332322331   <<    C3132121111331312113313331333133313331333132313231333133323223313   >>      C3132121111331312113313331333133313331333132313231333133323223312   >>