description: Let's define S(x) to be the sum of digits of number x written in decimal system. For example, S(5) = 5, S(10) = 1, S(322) = 7.
  
  We will call an integer x interesting if S(x + 1) < S(x). In each test you will be given one integer n. Your task is to calculate the number of integers x such that 1 ≤ x ≤ n and x is interesting.
  
  Input
  
  The first line contains one integer t (1 ≤ t ≤ 1000) — number of test cases.
  
  Then t lines follow, the i-th line contains one integer n (1 ≤ n ≤ 10^9) for the i-th test case.
  
  Output
  
  Print t integers, the i-th should be the answer for the i-th test case.
  
  Example
  
  Input
  
  
  5
  1
  9
  10
  34
  880055535
  
  
  Output
  
  
  0
  1
  1
  3
  88005553
  
  Note
  
  The first interesting number is equal to 9.
solution: import java.util.*;
  import java.io.*;
  /**
   *
   * @author alanl
   */
  public class Solve {
  
      /**
       * @param args the command line arguments
       */
      static BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
      static StringTokenizer st;
      static PrintWriter pr = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
      public static void main(String[] args) throws IOException {
          int t = readInt();
          while(t-->0){
              int n = readInt();
              println((n+1)/10);
          }
      }
      static String next () throws IOException {
          while (st == null || !st.hasMoreTokens())
                  st = new StringTokenizer(input.readLine().trim());
          return st.nextToken();
      }
      static long readLong () throws IOException {
          return Long.parseLong(next());
      }
      static int readInt () throws IOException {
          return Integer.parseInt(next());
      }
      static double readDouble () throws IOException {
          return Double.parseDouble(next());
      }
      static char readChar () throws IOException {
          return next().charAt(0);
      }
      static String readLine () throws IOException {
          return input.readLine().trim();
      }
      static void print(Object b) {
          System.out.print(b);
      }
      static void println(Object b) {
          System.out.println(b);
      }
      static void println() {
          System.out.println();
      }
  }
  