C21111113313132322331323331323113313233313231122112323133313232223132311   >>    C2111111331313232233132333132311331323331323112211232313331323222313231   <<    C21111113313132322331323331323113313233313231122112323133313232223132313   >>      C21111113313132322331323331323113313233313231122112323133313232223132312   >>