C21111113313132322331323331323113313233313331323133313233313232222311   >>    C2111111331313232233132333132311331323331333132313331323331323222231   <<    C21111113313132322331323331323113313233313331323133313233313232222313   >>      C21111113313132322331323331323113313233313331323133313233313232222312   >>