# #!/udr/bin/env python

# # for x in range (1,7):
# #     print (2**x)

# for x in range (1,14):
#     if x%2==1:
#         print(x)

# months_of_year = ["january","february","march","april","may","june","july","august"]
# for x in months_of_year:
#     if x.startswith("j"):
#         print(x)

# for x in range (1,10):
#     if x % 2 == 1:
#         print(x**2)

# for x in range (10,1,-1):
#     if x % 2 == 1:
#         print(x**2)


for y in range (1,5,+1):
    print(y * ("*"))
          