Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 伦纳多开了15公里。埃内斯托开了比伦纳多的距离的三分之一多7公里。这两个人总共开了多少公里？


### Response:
 伦纳多 = <<15=15>>15公里
埃内斯托 = (1/3) * 15 + 7 = <<(1/3)*15+7=12>>12公里
总共 = 15 + 12 = <<27=27>>27公里
伦纳多和埃内斯托总共开了27公里。