User:Heba Waheed/sandbox

using namespace std; int main { string s,x;
 * 1) include 

int n;  cin>>n; while(n--){ s.clear; x.clear; cin>>s>>x; for(int i=0;i<max(s.size,x.size);i++) {          if(isalpha(s[i]))cout<<s[i]; if(isalpha(x[i]))cout<<x[i]; }      cout<<"\n"; }  return 0; }