num = int(input())

for i in range(num):
    for j in range(i, num):
        print(" ", end=" ") #decreasing "space" loop
        
    for j in range(i):
        print("*", end=" ") #increasing " * " loop  & also here after all codde writen we have made range(i) to get peak of the triangle..
        
    for j in range(i+1):
        print("*", end=" ") #increasing " * " loop
    
    print()