'''
h = 4

*     w=1, k=1
**    w=2, k=2
***   w=3, k=3
****  w=4, k=4
'''

h = 4
wiersze = h
kolumny = 0

for w in range(wiersze):
    for k in range(w+1):
        print("*", end='')
    
    print("")