ACM (TJU) : 1644

// http://acm.tju.edu.cn/toj/showp1644.html

#include <stdio.h>
#include <string.h>

int main ()
{
    int testCase;
    scanf ("%d", &testCase);
    getchar ();

    while ( testCase-- ) {
        char input [80];

        gets (input);
        int length = strlen (input);

        for ( int i = 0; i < length / 2; i++ ) {
            input [i] ^= input [length - i - 1];
            input [length - i - 1] ^= input [i];
            input [i] ^= input [length - i - 1];
        }

        printf ("%s\n", input);
    }

    return 0;
}