> For the complete documentation index, see [llms.txt](https://hyundai-robotics.gitbook.io/hi6-robot-language/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hyundai-robotics.gitbook.io/hi6-robot-language/rl-english/flowcontrol-subprogram.md).

# 3. Flow-Control Statements and Sub-Program

The statements in the job program are executed line by line in top-to-bottom order. However, depending on certain conditions, the statements can be skipped without being executed, or certain statements can be executed repeatedly. Let us look at the control statements that can control the flow of the program in this manner.