#include<bits/stdc++.h>
using namespace std;
int main()
{
	char s[21],a[9]={'\0'},d[9]={'\0'};
	int i,m,b=1,j=0;
	long long t=0,n=0;
	gets(s);
	for(i=0;s[i]!='+';i++){
		a[i]=s[i];
	}j=i+1;
	for(i=0;s[j]!='=';i++){
		d[i]=s[j];
		j++;
	}
	for(i=0;a[i]!='\0';i++){
		t=t*10+(a[i]-'0'); 
	}
	for(i=0;d[i]!='\0';i++){
		n=n*10+(d[i]-'0'); 
	}
	cout<<t+n;
	return 0;
}
/**************************************************************
	Problem: 1130
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/