Number

#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <unordered_set>
#include <stdio.h>
#include <string.h>
#include <unordered_map>
#include <fstream>
#include <set>
#include <map>

#define MOD 1000000007
#define ll long long
#define N (1<<50)
#define float double
#define str string

using namespace std;


int main(){
    int n;
    string s;
    cin>>s;
    n=s.size();
    int poistettava=-1;
    for(int i=0; i<n-1; i++)
        if(s[i]<s[i+1]){
            poistettava=i;
            break;
        }

    if(poistettava==-1)
        poistettava=n-1;

    for(int i=0; i<n; i++)
        if(i!=poistettava)
            cout<<s[i];
    cout<<endl;
    return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED

Test 11

Verdict: ACCEPTED

Test 12

Verdict: ACCEPTED

Test 13

Verdict: ACCEPTED

Test 14

Verdict: ACCEPTED

Test 15

Verdict: ACCEPTED

Test 16

Verdict: ACCEPTED

Test 17

Verdict: ACCEPTED

Test 18

Verdict: ACCEPTED

Test 19

Verdict: ACCEPTED

Test 20

Verdict: ACCEPTED

Test 21

Verdict: ACCEPTED

Test 22

Verdict: ACCEPTED

Test 23

Verdict: ACCEPTED

Test 24

Verdict: ACCEPTED

Test 25

Verdict: ACCEPTED