include iostream include string using namespace std int main int Ix st

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#include <iostream>
#include <string>
using namespace std;
int main() {
int n,x,Ix,k=0;
string a;
getline(cin,a);
for(int I=0;I<a.length();I++){
if(isdigit(a[I]))
k++;
}
cout << k;
}