271A Beautiful-Year.cpp

#include<bits/stdc++.h>

using namespace std;

bool isdistinct(int n)
{
    int a,b,c,d;
    a=n%10;
    n=n/10;
    b=n%10;n=n/10;
    c=n%10;n=n/10;
    d=n%10;n=n/10;
    if(a==b||a==c||a==d||b==c||b==d||c==d)
    {
        return false;
    }
    else
    {
        return true;
    }
}

int main(){
    int n;
    cin >> n;
    n++;
    while(!isdistinct(n))
    {
        n++;
    }
    cout << n;

    return 0;
}