C21111113313132322331323331323113313233313231122112323133313223111   >>    C2111111331313232233132333132311331323331323112211232313331322311   <<    C21111113313132322331323331323113313233313231122112323133313223113   >>      C21111113313132322331323331323113313233313231122112323133313223112   >>