#include <iostream>
#include <queue>

int main(void) {
    size_t speed = 1;
    std::queue<size_t> accelerators;
    char device;
    for (size_t i = 0; std::cin >> device; ++i) {
        if (device == '+') {
            ++speed;
            accelerators.push(i);
        } else {
            if (speed == 1) {
                std::cout << i << "\n";
            } else {
                --speed;
                accelerators.pop();
            }
        }
    }
    while (!accelerators.empty()) {
        std::cout << accelerators.front() << "\n";
        accelerators.pop();
    }
}