def bf_compiler(code):
    mem = [0] * 30000
    ptr = head = 0
    output = ""

    while head < len(code):
        c = code[head]

        if c == '+': mem[ptr] += 1
        elif c == '-': mem[ptr] -= 1
        elif c == '>': ptr += 1
        elif c == '<': ptr -= 1
        elif c == '.': output += chr(mem[ptr])
        # ',' has been disabled

        elif c == '[' and mem[ptr] == 0:
            count = 1
            while count:
                head += 1
                if code[head] == '[': count += 1
                elif code[head] == ']': count -= 1

        elif c == ']' and mem[ptr] != 0:
            count = 1
            while count:
                head -= 1
                if code[head] == ']': count += 1
                elif code[head] == '[': count -= 1

        head += 1

    return output
    
hw = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++."
print(bf_compiler(hw))