Parallelogram Shapes (RL)
Parallelogram `[/x/]` and reverse parallelogram `[\x\]` for input and output steps, drawn right to left.
parallelogram-shapes-rl.mmd
graph RL
A[/Read Input/] --> B{Valid?}
B -->|yes| C[\Write Output\]
B -->|no| D[/Ask Again/]