C31232233133313221211113313331333132313331323231323132313122311   >>    C3123223313331322121111331333133313231333132323132313231312231   <<    C31232233133313221211113313331333132313331323231323132313122313   >>      C31232233133313221211113313331333132313331323231323132313122312   >>