package main

import "fmt"

func main() {
    m := "mse"
    u := ""
    j := "Jos"
    fmt.Printf("%d%s% x\n", len(m), m, m)
    fmt.Printf("%d%s%x\n", len(u), u, u)
    fmt.Printf("%d%s% x\n", len(j), j, j)
}