#include <iostream>
#include <stack>
#include <vector>
#include <string.h>
using namespace std;
int cvtNumber(string number) {
int k = 0;
for(int i = 0; i<number.size(); i++) {
int p = number[i] - '0';
k *= 10;
k += p;
}
return k;
}
int main()
{
string sol;
vector<int> solArr(201);
int num_1, num_2, len, getnum;
while(cin >> sol) {
if(cin.eof()) break;
}
len = sol.size();
cout << sol << ' ' << len <<'\n';
for(int i=0; i<len; i++){
if(sol[i] != '*' && sol[i] != '+' && sol[i] != '-'){
getnum = cvtNumber(sol);
cout << getnum << '\n';
solArr.push_back(getnum);
}
else if(sol[i] == '*'){
num_1 = solArr.back();
solArr.pop_back();
num_2 = solArr.back();
solArr.pop_back();
solArr.push_back(num_1 * num_2);
}
else if(sol[i] == '+'){
num_1 = solArr.back();
solArr.pop_back();
num_2 = solArr.back();
solArr.pop_back();
solArr.push_back(num_1 + num_2);
}
else if(sol[i] == '-'){
num_1 = solArr.back();
solArr.pop_back();
num_2 = solArr.back();
solArr.pop_back();
solArr.push_back(num_1 - num_2);
}
}
cout << solArr[0];
return 0;
}