#Mathematica (削除) 68 (削除ここまで) 61 bytes

Column[""<>RotateLeft["A"~CharacterRange~"Z",#]&/@0~Range~25]

Thanks to...

@MartinEnder (7 bytes)

Mathematica (削除) 68 (削除ここまで) 61 bytes

Column[""<>RotateLeft["A"~CharacterRange~"Z",#]&/@0~Range~25]

Thanks to...

@MartinEnder (7 bytes)

#Mathematica 68 bytes

Column[StringJoin@RotateLeft["A"~CharacterRange~"Z",#]&/@0~Range~25]

#Mathematica (削除) 68 (削除ここまで) 61 bytes

Column[""<>RotateLeft["A"~CharacterRange~"Z",#]&/@0~Range~25]

Thanks to...

@MartinEnder (7 bytes)