package main
import (
"fmt"
)
func main() {
fmt. Println("число:")
var k int
fmt. Scanln(&k)
factorial := factorial(k)
fmt. Println(" :", factorial)
}
func factorial(number int) int {
var result int = 1
for n := 1; n <= number; n++ {
result = result * n
}
return result
}