matrix find

def create_matrix(source):
    matrix = []
    for row in source.split('\n')[1:]:  # split string into list of strings on newline, and loop through each line
        matrix.append(row[3:].split()) # split string from position 3 on space (default for split)
    return matrix

def print_matrix(matrix):
    print('   ', end="")
    for idx in range(len(matrix[0])):
        print(f'{idx: 2x} ', end="")

    print()
    for idx, row in enumerate(matrix):
        print(f'{idx * 10:0>2} ', end="")
        for cell in row:
            print(f'{cell:>2} ', end="")
        print()

def find_target(matrix, target):
    locations = []
    for idx_r, row in enumerate(matrix):
       for idx_c, cell in enumerate(row):
        if cell == target:
            locations.append((idx_r, idx_c))
    return locations

def print_locations(locations):
    for row, col in locations:
        print(f'{row * 10:0>2}{col:0>2x}')

ss = """   0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00 __ __ __ __ __ __ __ __ __ __ __ __ UU __ __ __
10 UU __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
20 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
30 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
40 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
50 __ __ __ __ __ __ __ __ UU __ __ __ __ __ __ __
60 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __
70 __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ """


matrix = create_matrix(ss)
print_matrix(matrix)
locations = find_target(matrix, "UU")
if locations:
    print("\nTarget UU found in locations:-")
    print_locations(locations)