#include<bits/stdc++.h> using namespace std; int main() { char a[1000001]; cin>>a; for(int i =0 ;a[i]!='\0';i++){ if(a[i]>='0' and a[i]<='9'){ continue; }else{ cout<<a[i]; } } return 0; } // cin.getline(a,1000001);