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

### Instruction:
There are 322 voters in District 1. District 2 has 19 less voters than District 3. District 3 has twice as many voters as District 1. How many total voters are in Districts 1 - 3?

### Response:
 เขต 1 = <<322=322>>322
เขต 3 = 2 * 322 = <<2*322=644>>644
เขต 2 = 644 - 19 = <<644-19=625>>625
รวมกันทั้งหมดมีผู้ลงคะแนนเลือกตั้งในเขต 1 - 3 จำนวน 322 + 625 + 644 = <<322+625+644=1591>>1591 คน