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TomTom (Different Set) (1182)
Instruction:
Place a number from the specified set into each cell so that exactly the specified set of numbers appears in each row and column. Numbers may repeat within an outlined region. A number in the upper-left corner of each region (if given) indicates the value of one of the four basic operations applied to all numbers in the region, starting with the largest number for subtraction and division (e.g., 1, 2, 4 with division has a clue of 2÷ as 4÷2÷1=2). At least one of the four operations must apply. The operation is given after the number, when given at all. Some numbers may be given in the grid.
If a region has only one cell, a given number is equal to the number that should be placed in the cell.