#include <iostream> #include <string> using namespace std; int main() { string s; getline(cin, s); string a; int len = s.size(), cur = 0; for(int i = 0; i < len; i++) { if(s[i] == '@') {a = " "; cur = 0;} if(s[i] == '#') {if(cur >= 1) a[cur--] = ' ';} else a[++cur] = s[i]; } for(int i = 1; i <= cur; i++) cout << a[i]; cout << endl; return 0; }