C132233133112121111331333133313331323132313231323223313221223231   >>    C13223313311212111133133313331333132313231323132322331322122323   <<    C132233133112121111331333133313331323132313231323223313221223233   >>      C132233133112121111331333133313331323132313231323223313221223232   >>