题解

#include<bits/stdc++.h>
using namespace std;
char s[10086];
int a=0;
int main()
{
cin>>s;
int n = strlen(s);
for(int i=0;i<n;i++)if(s[i]>='0'&&s[i]<='9')a=a+(s[i]-'0');
cout<<a;
return 0;
}