30 50
ADA DCA AA DA AAB ABA AB ACC AAD DBC D ADD ACD CBD DCB CB DAB CBB AD DBB DD DBA DAD ACB DDB AAA ABB DDA ABC DCD B DDD DC ABD DBD A ADC ACA AAC BC DDC ADB AC DAA DAC CA CD DCC BCC DB 
ADC DCC AC DC AAD ABC AD CBB AAA DDB A ADA ACA CBA DCD CD DAD CBD AA DBD DA DBC DAA ACD DDD AAC ABD DDC ADB DCA D DDA AB ABA DBA C AAB ACC ACB DB DAB ADD CB DAC DCB CC CA ABB DBB DD