Congratulations to nprofile1qqsvqses4kkaj5yvrtgudm0q4m2ajg4rv4czrym7yp26srqm9pjueacpp4mhxue69uhkummn9ekx7mq8zkrsf for solving the puzzle! Here is the answer:

A: He lights 1, 3, and 5. Lights torch 2 with 1, torch 4 with 3, torch 6 with 5, and torch 1 with 4. He continues this pattern, leaving after lighting torch 100 with torch 98 and 99.

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