If i give any number, the output's rows are less than that number. Why?

It's because you increment i on line 18, which you don't need to do as i as incremented automatically as set by the for loop (line 8). This means that you're incremented i twice for each loop, so you get fewer lines than you are expecting.

The amount of rows depends on the input. So I need to know what did you input to get the 5 rows.

M. Jawahirullah are you trying to make a Floyd triangle?

Thank u Russ

No problem! Happy coding!