---
test case: "Hello, World! -> W"
in:
  string: "Hello, World!"
  left: 7
  right: 7
out:
  return: "W"
---
test case: "Hello, World! -> Hello"
in:
  string: "Hello, World!"
  left: 0
  right: 4
out:
  return: "Hello"
---
test case: "Hello, World! -> World"
in:
  string: "Hello, World!"
  left: 7
  right: 11
out:
  return: "World"
---
test case: "!@#$%^&*() -> @#$%^&"
in:
  string: "!@#$%^&*()"
  left: 1
  right: 6
out:
  return: "@#$%^&"
---
test case: "Newlines"
in:
  string: "Newlines\nNewlines\nNewlines\nNewlines"
  left: 9
  right: 17
out:
  return: "Newlines\n"
---
test case: "Quotation marks"
in:
  string: 'sasa"""sasa'
  left: 4
  right: 6
out:
  return: '"""'
...