5 times 5

5!(51)!(52)!(53)!(54)!=? \large 5! - (5-1)! - (5-2)! - (5-3)!- (5-4)! = \, ?

Notation: !! denotes the factorial notation. For example, 8!=1×2×3××88! = 1\times2\times3\times\cdots\times8 .

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