C1111233131211111211113313331323133313231323213231323132313232311   >>    C111123313121111121111331333132313331323132321323132313231323231   <<    C1111233131211111211113313331323133313231323213231323132313232313   >>      C1111233131211111211113313331323133313231323213231323132313232312   >>