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fromstringimportascii_uppercaseasaaadefdecode(k,m):# Removes duplicates from keykey=''.join([xfori,xinenumerate(k)ifk.index(x)==i])# Get aplhabet without chars in keyalph=''.join([xforxinaaaifxnotinkey])# Get base ordered chardec=key+alph# Creates columns by indexing: range() with steps of len(key) and# Increases the start-value from 0 to len(key) + sorts themcolumns=sorted([''.join([dec[x]forxinrange(n,len(dec),len(key))])forninrange(len(key))])# Creates a decoding dictd={a:bforb,ainzip(aaa,''.join(columns))}# Decodereturn''.join(d[x]ifxindelse' 'forxinm)for_inrange(int(input())):key=input()mes=input()print(decode(key,mes))
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Keyword Transposition Cipher
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Python 3