#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ char a[1000001]; int s=0,t=0; cin>>a; for(int i=0;a[i]!='\0';i++) s++; for(int i=0;i<s;i++){ if(a[i]!='0' && a[i]!='1' && a[i]!='2' && a[i]!='3' && a[i]!='4' && a[i]!='5' && a[i]!='6' && a[i]!='7' && a[i]!='8' && a[i]!='9') cout<<a[i]; else continue; } cout<<a; return 0; }