C132233133112121111331333133313331323133311331323223313232211321   >>    C13223313311212111133133313331333132313331133132322331323221132   <<    C132233133112121111331333133313331323133311331323223313232211323   >>      C132233133112121111331333133313331323133311331323223313232211322   >>