Here are the appropriate flowchart symbols for each of the statements:
I. Accept Variable num: Parallelogram with "Input/Output" written inside
II. Is num > 0 ?: Diamond with "Yes" and "No" written on either side
III. Display num: Parallelogram with "Input/Output" written inside
IV. Num = num + 1: Rectangle with "Process" written inside
V. Stop: Oval with "Terminator" or "End" written inside
Putting all these symbols together, the flowchart would look like this:
+--------------+
| |
+---->+ Input/Output |
| | |
| +------+-------+
| |
| v
| +-----+-----+
| | |
| | Diamond |
| | |
| +-+-----+---+
| | Yes |
| v v
| +-------+---+
| | |
| | Input/Output |
| | |
| +-------+---+
| |
| v
| +-------+-+
| | |
| | Process |
| | |
| +---------+
| |
| v
| +-------+-+
| | |
| | End |
| | |
| +---------+
|
+--------------+