C132233133112121111331333133313331333132322331333131133232212331   >>    C13223313311212111133133313331333133313232233133313113323221233   <<    C132233133112121111331333133313331333132322331333131133232212333   >>      C132233133112121111331333133313331333132322331333131133232212332   >>