优质解答
51.CBBCB,CCABC,CCACB,ACBAA
52.ACCAB,ACBAC,BBCAC,浆果
53.BCBAA,BBACB,CBCBA,CABBC
54.BBCAA,BBCBB,BCCBB,CCBBA /> 55.CAAAC,CBAAA,CACAB,CCABC
56.CCACB,BCACC,BAABC,BCBCB
57.CBCAC,CAAAC,BABCA,CCCBA
58.BCBAC,BBBCC,BCCBA,CBAAB
51.CBBCB,CCABC,CCACB,ACBAA
52.ACCAB,ACBAC,BBCAC,浆果
53.BCBAA,BBACB,CBCBA,CABBC
54.BBCAA,BBCBB,BCCBB,CCBBA /> 55.CAAAC,CBAAA,CACAB,CCABC
56.CCACB,BCACC,BAABC,BCBCB
57.CBCAC,CAAAC,BABCA,CCCBA
58.BCBAC,BBBCC,BCCBA,CBAAB