For JAVA

Scanner scan=new Scanner(System.in);

int N=scan.nextInt();
scan.nextLine();
for(int i=0;i<N;i++){
    String s=scan.nextLine();
    for(int j=0;j<s.length();j++){
        if(j%2==0){
            System.out.print(s.charAt(j));
        }
    }
    System.out.print(" ");
    for(int k=0;k<s.length();k++){
        if(k%2!=0){
            System.out.print(s.charAt(k));
        }
    }
    System.out.println();
}

scan.close();