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#include <iostream>
using namespace std;
int main()
{
int a;
cin >> a;
int temp = a;
int count = 0;
while (temp > 0){
temp /= 10;
count++;
}
cout << count;
}
#include <iostream>
using namespace std;
int main()
{
int a;
cin >> a;
int temp = a;
int count = 0;
while (temp > 0){
temp /= 10;
count++;
}
cout << count;
}