Simultaneous output of numbers while preserving order

It is necessary to modify the program so that the printNumber function runs in multiple goroutines, but the numbers from 1 to 10 are output strictly sequentially (1, 2, 3, ..., 10) with a one-second delay before each output.

package main

import (
        "fmt"
        "time"
        )

func main() {
    for idx := 0; idx < 10; idx++ {
        printNumber(idx + 1)
    }
}

func printNumber(num int) {
    time.Sleep(time.Second)
    fmt.Println(num)
}