C1111233131211111211113313331323133313231323223313132313232223311   >>    C111123313121111121111331333132313331323132322331313231323222331   <<    C1111233131211111211113313331323133313231323223313132313232223313   >>      C1111233131211111211113313331323133313231323223313132313232223312   >>