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

#define NR_STRING    100

void encrypt( char* str );

int main( int argc, char** argv )
{
    int nr_trying;
    int j;
    char** strings;
    char* str;

    scanf("%d", &nr_trying);

    strings = (char**)malloc( nr_trying );

    for( j=0; j<nr_trying; j++ )
    {
        str = (char*)malloc(NR_STRING);
        scanf("%s", str );

        strings[j] = str;

    }

    for( j=0; j<nr_trying; j++ )
    {
        encrypt( strings[j] );

        printf( "%s\n", strings[j] );

        free(strings[j]);
    }



    return 0;
}


void encrypt( char* str )
{
    char* currStrPos;
    char* currTempPos;
    int stringLen;
    int i;
    char tempStr[NR_STRING] = { 0, };

    stringLen = strlen(str);

    currStrPos = str;
    currTempPos = tempStr;

    for( i=0; i<stringLen; i++)
    {
        if( i%2 == 0)
        {
            *currStrPos = str[i];
            currStrPos++;
        }
        else
        {
            *currTempPos = str[i];
            currTempPos++;
        }

    }

    str[currStrPos-str] = '\0';
    tempStr[currTempPos-tempStr] = '\0';

    strcat(str,tempStr);


}