id   customer               amount
1    Andi Pratama            24500
2    Budi Santoso            20000
3    Citra Dewi Lestari      24000
3 orders, total 68500
--- orders.txt ---
1 24500 Andi Pratama
2 20000 Budi Santoso
3 24000 Citra Dewi Lestari
