#include <iostream>
#include <string>
using namespace std;
 
int main() {
    string s="Dog goes woof\nCat goes meow\nBird goes tweet\nand mouse goes squeek\nCow goes moo\nFrog goes croak\nand the elephant goes toot\nDucks say quack\nand fish go blub\nand the seal goes ow ow ow";
    cout<<"Вхідний текст: "<<endl<<s<<endl;
 
    string And="and";
    size_t pos=s.find(And);
    while(pos!=string::npos){
    	s.erase(pos,And.length());
    	pos=s.find(And);
    }
    string change[]={" goes "," say "," go "};
    string changer=" - ";
    for(size_t i=0;i<3;++i){
    	string past=change[i];
    	pos=s.find(past);
    	while(pos!=string::npos){
    		s.replace(pos,past.length(),changer);
    		pos=s.find(past,pos+changer.length());
    	}
    }
    cout<<"Результат: "<<endl<<s;
    return 0;
}

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