Q1

input = int(input("Enter length of stars line"))
output = ""
for i in range(0,input) :
    for j in range(0,input-i):
       output+='*'
    for j in range(0,i*2):
       output+=' '
    for j in range(0,input-i):
       output+='*'
    output+="\n"
print(output)