1553A_digits_sum.cpp

#include<iostream>
#include<algorithm>
#include<array>
#include<vector>
#include<map>
#include<cmath>
using namespace std;
int main()
{
    long t;
    cin>>t;
    while(t--)
    {
        long n;
        cin>>n;
        cout<<(n+1)/10<<endl;
    }
    return 0;
}