let brainfuck(INPUT) = do
    memory = [0] * 30*1000
    pointer = 0
    output = ""
    i = 0
    while (i < INPUT.length) do
        if (INPUT[i] == ">") do
            pointer += 1
        else if (INPUT[i] == "<") do
            pointer -= 1
        else if (INPUT[i] == "+") do
            memory[pointer] += 1
        else if (INPUT[i] == "-") do
            memory[pointer] -= 1
        else if (INPUT[i] == ".") do
            output += chr(memory[pointer])
        else if (INPUT[i] == ",") do
            memory[pointer] = ord(input())
        else if (INPUT[i] == "[") do
            if (memory[pointer] == 0) do
                count = 1
                while (count > 0) do
                    i += 1
                    if (INPUT[i] == "[") do
                        count += 1
                    else if (INPUT[i] == "]") do
                        count -= 1
        else if (INPUT[i] == "]") do
            if (memory[pointer] != 0) do
                count = 1
                while (count > 0) do
                    i -= 1
                    if (INPUT[i] == "]") do
                        count += 1
                    else if (INPUT[i] == "[") do
                        count -= 1
        else do
            pass
        i += 1
    term.print(memory)
    return output

term.time("brainfuck")
term.plain.oneLine(brainfuck(input()))
term.timeEnd("brainfuck")