#include <iostream>
#include <cstring>
 
using namespace std;
 
int main() {
	char s[2001];
    int nr = 0, p1 = -1, m;
    cin.getline(s, 2001, 0);
    int lg = strlen(s);
    for (int a = 0; a < lg; ++a){
        cin >> s[a];
        if (isalpha(s[a]) && isalpha(s[a + 1]) && p1 == -1)
                p1 = a;
        if (!isalpha(s[a]) && p1 != -1){
                    nr = a - p1;
                    m = nr / 2;
                    for (int i = p1; i < p1 + m; ++i){
                        if (s[i] != s[i + nr - m])
                        swap(s[i], s[i + nr - m]);
                    }
                    p1 = -1;
            }
        }
    cout << s;
 
	return 0;
}

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

dGVzdCAgYmFyWkEKQW5hLCBkYXIgc2kgTWFyaWEgIGEhISEgIGludmF0YSBzYSBwcm9ncmFtZXplIHBlIFdlbGxDb2RlISEKCkludmF0YSBzaSB0dSBzYSBwcm9ncmFtZXppJCQgISFAI0NBU3RlbCBkZSwsICZndDsmZ3Q7Jmd0O3BvYXJ0YVI=

test  barZA
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