This is (should be) the exact equivalent of the Cilia code in Cpp2:

• Types
  • int, i32, i64, f32
• Variables
  • x: int = 42;
  • x := 42;
  • x : const int = 42;
  • words: vector<string> = ();
  • names: set<string> = ();
  • contactInfoForID: map<string, ContactInfo> = ();
• Functions
  • multiply: (a: int, b: int) -> int = a * b;
  • print: (a: ContactInfo) = { ...; }
  • concat: (a: string_view, b: string_view) -> string = ...;
• Loops
  • for 1..=10 do (i) { ...; }
  • for 0..<words.size() do (i) { ...; }
  • for (5, 7, 11, 13) do (i) { ...; }
  • for words do (word) { ...; }

Note
In Cpp2 int and 42 are typically 32 bits wide, not 64 bits.