```go
package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	reader := bufio.NewReader(os.Stdin)
	writer := bufio.NewWriter(os.Stdout)
	defer writer.Flush()

	var t int
	fmt.Fscan(reader, &t)

	for tc := 0; tc < t; tc++ {
		var n int
		fmt.Fscan(reader, &n)

		a := make([]int, n)
		for i := 0; i < n; i++ {
			fmt.Fscan(reader, &a[i])
		}

		p := make([]int, n)
		cur := 0

		for i := 0; i < n; i++ {
			if a[i] > 0 {
				p[i] = cur
				cur += a[i]
			} else {
				p[i] = cur - a[i]
			}
		}

		for i := 0; i < n; i++ {
			if i > 0 {
				fmt.Fprint(writer, " ")
			}
			fmt.Fprint(writer, p[i])
		}
		fmt.Fprintln(writer)
	}
}
```