Change for customer 1: 3x200 1x100 0x50 1x20 0x10 0x5 1x2 1x1
Change for customer 2: 1x200 0x100 1x50 0x20 0x10 1x5 0x2 1x1
Change for customer 3: 6x200 1x100 1x50 2x20 0x10 0x5 0x2 0x1
Change for customer 4: 1x200 0x100 0x50 0x20 0x10 0x5 0x2 0x1
Change for customer 5: 0x200 1x100 0x50 0x20 0x10 0x5 0x2 1x1