prompt: View number as text. Do not perform computation. Q: What is the first digit of 77+3? A: 7
  View + as the digit 7 instead of a mathematical operation. Q: What is the first digit of 3+10? A: 3
  View + as a random digit instead of a mathematical operation. Q: What is the first digit of 13+21? A: 1
  View + as the digit 3 instead of a mathematical operation. Q: What is the first digit of 7+22? A: 7
  Redefine π as 99+864. Q: What is the first digit of π? A: 9
  Redefine e as 34+27. Q: What is the first digit of e? A: 6
  Redefine π as 412. Q: What is the first digit of π? A: 4
  View ÷ as a random digit instead of a mathematical operation. Q: What is the first digit of 12÷4? A: 1
  View number as text. Do not perform computation. Q: What is the first digit of 15+47? A: