prompt: Redefine e as 10+1. Q: What is the first digit of e? A: 1
  Redefine π as 72. Q: What is the first digit of π? A: 7
  Redefine π as 242 mod 30. Q: What is the first digit of π? A: 2
  Redefine π as 980 mod 17. Q: What is the first digit of π? A: 1
  View number as text. Do not perform computation. Q: What is the first digit of 8+15? A: 8
  Redefine π as 130+6. Q: What is the first digit of π? A: 1
  Redefine e as 27+8. Q: What is the first digit of e? A: 3
  Redefine π as 68. Q: What is the first digit of π? A: 6
  Redefine π as 557. Q: What is the first digit of π? A: