C21221212121323223313131323132322331323132322112211232313232212331   >>    C2122121212132322331313132313232233132313232211221123231323221233   <<    C21221212121323223313131323132322331323132322112211232313232212333   >>      C21221212121323223313131323132322331323132322112211232313232212332   >>