jshell> Stream.iterate(1, x -> x * 4 + 1).limit(10).map(Integer::toBinaryString).map(x -> " ".repeat(9 - x.length() / 2) + x).forEach(System.out::println)
         1
        101
       10101
      1010101
     101010101
    10101010101
   1010101010101
  101010101010101
 10101010101010101
1010101010101010101

cat >> go_loops.txt <<EOF
- Цикл по числу
- Цикл по функции, принимающей коллбек с нулём аргументов
- Цикл по функции, принимающей коллбек с одним аргументом
- Цикл по функции, принимающей коллбек с двумя аргументами
EOF

test.yaml:3:5: unexpected key "branch" for "push" section. expected one of "branches", ..., "workflows" [syntax-check]
  |
3 |     branch: main
  |     ^~~~~~~
test.yaml:10:28: label "linux-latest" is unknown. available labels are "macos-latest", ..., "windows". if it is a custom label for self-hosted runner, set list of labels in actionlint.yaml config file [runner-label]
   |
10 |         os: [macos-latest, linux-latest]
   |                            ^~~~~~~~~~~~~
test.yaml:13:41: "github.event.head_commit.message" is potentially untrusted. avoid using it directly in inline scripts. instead, pass it through an environment variable. see https://docs.github.com/en/actions/security-for-github-actions/security-guides/security-hardening-for-github-actions for more details [expression]
   |
13 |       - run: echo "Checking commit '${{ github.event.head_commit.message }}'"
   |                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

warning[artipacked]: credential persistence through GitHub Actions artifacts
  --> mypy/.github/workflows/mypy_primer.yml:37:9
   |
37 |         - uses: actions/checkout@v4
   |  _________-
38 | |         with:
39 | |           path: mypy_to_test
40 | |           fetch-depth: 0
   | |________________________- does not set persist-credentials: false
   |
   = note: audit confidence → Low

error[dangerous-triggers]: use of fundamentally insecure workflow trigger
 --> mypy/.github/workflows/mypy_primer_comment.yml:3:1
  |
3 | / on:
4 | |   workflow_run:
... |
7 | |     types:
8 | |       - completed
  | |_________________^ workflow_run is almost always used insecurely
  |
  = note: audit confidence → Medium

  - repo: https://github.com/python-jsonschema/check-jsonschema
    rev: 0.30.0
    hooks:
      - id: check-dependabot
      - id: check-github-workflows