#include<bits/stdc++.h> using namespace std; int main(){ char a[1005],b[1005]; while(scanf("%s%s",a,b)!=EOF){ int aa[30] = { },bb[30] = { }; for(int i = 0;i<strlen(a);i++){ aa[a[i]-'a'+1] = 1; } for(int i = 0;i<strlen(b);i++){ bb[b[i]-'a'+1] = 1; } for(int i = 1;i<27;i++){ if(aa[i] == 1 &&bb[i] == 1){ cout<<(char)(i+'a'-1); } } cout<<endl; } return 0; } |
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