複数のリストから二文字ずつ全パターン【愚直解】
alphabet= 'abcdefghijklmnopqrstuvwxyz' digits = '0123456789' pattern = [a+b+c+d for a in alphabet for b in lowercase for c in digits for d in digits]
alphabet= 'abcdefghijklmnopqrstuvwxyz' digits = '0123456789' pattern = [a+b+c+d for a in alphabet for b in lowercase for c in digits for d in digits]