C1111233131211111211113313231333133313331323221211111323132323331311321   >>    C111123313121111121111331323133313331333132322121111132313232333131132   <<    C1111233131211111211113313231333133313331323221211111323132323331311323   >>      C1111233131211111211113313231333133313331323221211111323132323331311322   >>