package main import ( "fmt" "math/rand" "time" ) func main() { rand.Seed(time.Now().UnixNano()) n := 100000 fmt.Println(n) for i := 0; i < n; i++ { k := 1e9 - rand.Intn(1e10) if rand.Intn(2)%2 == 0 { fmt.Println("insert", k) } else { fmt.Println("delete", k) } } }