#include<bits/stdc++.h> using namespace std; int main(){ char c[1000001],a,b; cin.getline(c,1000001); int i=i-1; for(c[i]!='\0'){ i++; if(c[i]>='0'and c[i]<='9'){ continue; }else{ cout<<c[i]; } } return 0; }