#include <iostream>
using namespace std;
char num[10][10] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
int lookup(char *t)
{
for(int i = 0; i < 10; i++)
if(strcmp(t, num[i]) == 0)
return i;
}
int main()
{
int a, b;
char temp[10];
while(scanf("%s", temp) != EOF)
{
a = lookup(temp);
while(scanf("%s", temp), strcmp(temp, "+") != 0)
{
a = a * 10 + lookup(temp);
}
b = 0;
while(scanf("%s", temp), strcmp(temp, "=") != 0)
{
b = b* 10 + lookup(temp);
}
if(a == 0 && b==0)
break;
cout << a + b << endl;
}
return 0;
}