07. Christmas Tree

package main

import (
    "fmt"
    "strings"
)

func main() {
    var n int
    fmt.Scanln(&n)

    for i := 0; i <= n; i++ {
        fmt.Printf("%s%s | %s%s\n", strings.Repeat(" ", n - i), strings.Repeat("*", i), strings.Repeat("*", i), strings.Repeat(" ", n - i))
    }
}