My js answer :

function processData(input) {

const lines = input.split('\n')
const t = parseInt(lines[0])


for(let i = 1; i<= t; i++){
    let even = "";
    let odd = "";

    for(let k = 0; k < lines[i].length ; k++){
        if(k % 2 === 0){
            even += lines[i][k];
        }
        if(k % 2 === 1){
            odd += lines[i][k];
        }
    }    


     console.log(even + " " + odd);
}

}