package main

import (
    "crypto/rand"
    "encoding/binary"
    "fmt"
)

func main() {
    var n int32
    binary.Read(rand.Reader, binary.LittleEndian, &n)
    fmt.Println(n)
}

package main

import (
    "fmt"
    "math/rand"
    "time"
)


func main() {
    rand.Seed(time.Now().UnixNano())
    fmt.Println(rand.Intn(100))
}