C1111233133313231133133313331333132313331323113121111331333132321312111   >>    C111123313331323113313331333133313231333132311312111133133313232131211   <<    C1111233133313231133133313331333132313331323113121111331333132321312113   >>      C1111233133313231133133313331333132313331323113121111331333132321312112   >>