String Explosion

text = input()
formatted_text = ""
power = 0

for idx in range(len(text)):
    if power > 0 and text[idx] != ">":
        power -= 1

    elif text[idx] == ">":
        formatted_text += text[idx]
        power += int(text[idx + 1])
    else:
        formatted_text += text[idx]

print(formatted_text)