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OI-codes/AcWing/761/761.cpp

16 lines
225 B
C++

#include <bits/stdc++.h>
using namespace std;
int main() {
char c;
int ans = 0;
while (cin >> c) {
if ('0' <= c && c <= '9') {
ans++;
}
}
cout << ans << endl;
return 0;
}