package main

import (
    "fmt"
    "os"
    "syscall"
    "time"
)

var filename = "input.txt"

func main() {
    foo, err := os.Stat(filename)
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println("mod time was:", foo.ModTime())
    mtime := time.Now()
    atime := mtime