C132233133112121111331333133313331333132322331333133313233223312321   >>    C13223313311212111133133313331333133313232233133313331323322331232   <<    C132233133112121111331333133313331333132322331333133313233223312323   >>      C132233133112121111331333133313331333132322331333133313233223312322   >>