car | price | condition
nissan|10 | old
nissan|20 | old
nissan|30 | new
BMW|40 | old
BMW|100 | new
audi|40 | old
audi|100 | old
audi|15 | old
audi|35 | old
OUTPUT Required:
car | difference
nissan| 30-10=20(max-min) if max is new condition
bmw | 100-40=60(max-min) if max is new condition
audi |15 all are old get the lowest one