Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
When was the first HC climb before 2013 with more than 3 times visited, more than 4 HC climbs, and a height of 1669?

### Inputs:
table_name: table, columns: ['Height (m.)', 'No. of times visited', 'No. of HC climbs', 'First time as HC climb', 'Most recent']

### Response:
SELECT First time as HC climb FROM table WHERE No. of times visited > 3 AND No. of HC climbs = 4 AND Most recent < 2013 AND Height (m.) = 1669