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Euler Square (1125)
Instruction:
Place letters of the specified list into some cells, no more than one letter per cell, so that each letter appears exactly once in each row and column. Place numbers of the specified list into some cells, no more than one number per cell, so that each number appears exactly once in each row and column. No two cells may contain both the same letter and the same number. Some letters and numbers may already be filled in for you.