width = input("Enter the width (a multiple of 3): ")

# prints 'U' (First attempt)
##for row in range(width):
##    for column in range(width/3):
##        print "*",
##    for column in range(width/3):
##        print " ",
##    for column in range(width/3):
##        print "*",
##    print
##
##for row in range(width/3):
##    for column in range(width):
##        print "*",
##    print


# prints 'U'
for row in range(width):
    for column in range(width):
        if column < width/3 or column >= width*2/3:
            print "*",
        else:
            print " ",
    print

for row in range(width/3):
    for column in range(width):
        print "*",
    print


#prints blank lines
for row in range(width/3):
    print

# Prints "N"
# Print top half of the "N"
for row in range(width*2/3):
    for column in range(width/3):
        print "*",
    for column in range(width/3):
        if column >= row:
            print " ",
        else:
            print "*",
    for column in range(width/3):
        print "*",
    print
    
# Prints the bottom half of the "N"
for row in range(width*2/3):
    for column in range(width/3):
        print "*",
    for column in range(width/3):
        if column >= row:
            print "*",
        else:
            print " ",
    for column in range(width/3):
        print "*",
    print


#prints blank lines
for row in range(width/3):
    print


# prints 'I'
for row in range(width/3):
    for column in range(width):
        print "*",
    print

for row in range(width*2/3):
    for column in range(width/3):
        print " ",
    for column in range(width/3):
        print "*",
    print

for row in range(width/3):
    for column in range(width):
        print "*",
    print