case_1 =["A","B","C"]
case_2 =["D","E","F"]
result=[a+b for a in case_1 for b in case_2]
print(result)
#['AD', 'AE', 'AF', 'BD', 'BE', 'BF', 'CD', 'CE', 'CF']
result=[[a+b for a in case_1] for b in case_2]
print(result)
#[['AD', 'BD', 'CD'], ['AE', 'BE', 'CE'], ['AF', 'BF', 'CF']]
| cs |
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