1. Description

Print top 10 rows in Pascal's Triangle. Complete the rows placeheld by "..." based on the Pascal's Triangle's definition

2. Input & Output

Input:

• No input for this problem

Output:

• Multiple lines of string
• Use print() for your output

Example

# Input: 
# Output: 
1
1-1
1-2-1
1-3-3-1
...
1-9-...-9-1