#nested loop
#--------------------------------------
for i in range(4,0,-1):
    for j in range(5,i,-1):
        print(i,end="")
    print()
   
'''
4
33
222
1111
'''
#-------------------------------------

for i in range(4,0,-1):
    for j in range(i):
        print(i,end="")
    print()
'''
4444
333
22
1
'''
#----------------------------------------
for i in range(3):
    for j in range(i+1):
        print(i+1,end="")
    print()
'''
1
22
333
'''
#-----------------------------
for i in range(4,0,-1):
    for j in range(4):
        print(i,end="")
    print()

'''
4444
3333
2222
1111
'''
#-------------------------------
for i in range(4):
    for j in range(4):
        print(i+1,end="")
    print()
'''
1111
2222
3333
4444
'''
#---------------------------------------
for i in range(4):
    for j in range(4):
        print(j+1,end="")
    print()
'''
1234
1234
1234
1234
'''
#----------------------------------------
for i in range(4):
    for j in range(4):
        print("*",end="")
    print()
'''
****
****
****
****
'''
#----------------------------------------
for i in range(4):
    for j in range(i+1):
        print("*",end="")
    print()
'''
*
**
***
****
'''