Construct Number Partern

3. Write a Python program to construct the following pattern, using a nested loop number.

#1                                 

#22  

# 333  

# 4444 

# 55555 

# 666666   

# 7777777       

# 88888888 

# 999999999 

# Solution number.

for i in range(10):
    print(str(i) * i)