1006

#include<iostream>
#include<stack>

using namespace std;

int main()
{
    stack<char> s;
    int n;
    cin >> n;
    int a = n % 10;
    n /= 10;
    while (a != 0)
    {
        s.push(a+'0');
        --a;
    }
    int b = n % 10;
    n /= 10;
    while (b != 0)
    {
        s.push('S');
        --b;
    }
    int c = n % 10;
    while (c != 0)
    {
        s.push('B');
        --c;
    }
    while (!s.empty())
    {
        cout << s.top();
        s.pop();
    }

    return 0;
}