include <iostream>

include <cmath>

using namespace std;

define ll long long

int main() { ll n,m,i,a,b,c,d; cin>>n>>m; while(n+i<=m) { a=(n+i)/1000; b=(n+i)/100%10; c=(n+i)/10%10; d=(n+i)%10; if(a!=b && b!=c && a!=c && a!=d && b!=d && c!=d) cout<<n+i<<" "; i++; } }

include <bits/stdc++.h>

using namespace std; int main() { int x,y,i; cin>>x>>y; for(i=x;i<=y;i++) { int a=i/1000;

int b=(i/100)%10; int c=(i/10)%10; int d=i%10; if((a!=b) and (a!=c) and (a!=d) and (b!=c) and (b!=d) and (c!=d)) cout<<i<<" "; } return 0;

}

include <bits/stdc++.h>

using namespace std; int main() { int x,y,i; cin>>x>>y; for(i=x;i<=y;i++) { int a=i/1000;

int b=(i/100)%10; int c=(i/10)%10; int d=i%10; if((a!=b) and (a!=c) and (a!=d) and (b!=c) and (b!=d) and (c!=d)) cout<<i<<" "; } return 0;

}

include <bits/stdc++.h>

using namespace std; int main() { int x,y,i; cin>>x>>y; for(i=x;i<=y;i++) { int a=i/1000; int b=(i/100)%10; int c=(i/10)%10; int d=i%10; if((a!=b) and (a!=c) and (a!=d) and (b!=c) and (b!=d) and (c!=d)) cout<<i<<" "; } }//NAHID ZEYD VƏ RƏŞŞADDAN PROOO!!!!!!!!!!!!!!!!!