commands = input()
char = commands[0]
line = [char]
x = 0
for command in commands:
    if command == '<':
        line[x - 1] = char
        x -= 1
    elif command == '>':
        line.append(char)
        x += 1
    elif command == 'V':
        print(*line, sep='')
        line.clear()
        for i in range(x):
            line.append(' ')
        line.append(char)
print(*line, sep='')