class Hexdumper:
    def naive_hexdump(s):
        b = 0
        for c in s:
            print(f"{ord(c):<0x}")
            b += 1
            if b >= 15:
                print("\n")
    def read_chunk(byte_array, chunk_size=16):
        for i in range(0, len(byte_array), chunk_size):
            yield byte_array[i:i + chunk_size]
    def hexdump(s):
        b = 0
        bytes = s.encode("UTF-8")
        for linebytes in Hexdumper.read_chunk(bytes):
            # Print byte offset (column 1)
            print(f"{b:>08x} ", end='')
            # Print hex bytes (column 2)
            for c in linebytes:
                print(f"{c:0x} ", end='')
                b += 1
            # Add padding to get to column 3 if we haven't printed 16 hex bytes
            if b % 16 != 0:
                print(" " * (48-((b % 16)*3)), end='')
            # Print characters (column 4)
            for c in linebytes:
                if c > 32 and c <= 127:
                    print(f"{chr(c)}", end='')
                else:
                    print("?", end='')
            print("")

if __name__ == "__main__":
    Hexdumper.hexdump("🐶🐮✅🌭🐱🐶🐮✅🌭🌭🌭🌭")
    Hexdumper.hexdump("abcdef[]093840.: )@#u,p03UX)")