#include <iostream>
#include <bits/stdc++.h>
using namespace std;
int main() {
// your code goes here
// string s = "i can do this";
// replace(s.begin(),s.end(),"can", "can not");
// cout<<s;
vector<int> v={1,2,3,3,3};
replace(v.begin(),v.end(),3,4);
for(int i=0;i<v.size();i++)
cout<<v[i]<<" ";
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8Yml0cy9zdGRjKysuaD4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJLy8geW91ciBjb2RlIGdvZXMgaGVyZQovLwlzdHJpbmcgcyA9ICJpIGNhbiBkbyB0aGlzIjsKLy8JcmVwbGFjZShzLmJlZ2luKCkscy5lbmQoKSwiY2FuIiwgImNhbiBub3QiKTsKLy8JY291dDw8czsKCXZlY3RvcjxpbnQ+IHY9ezEsMiwzLDMsM307CglyZXBsYWNlKHYuYmVnaW4oKSx2LmVuZCgpLDMsNCk7Cglmb3IoaW50IGk9MDtpPHYuc2l6ZSgpO2krKykKCQljb3V0PDx2W2ldPDwiICI7CglyZXR1cm4gMDsKfQ==