function solve(table, commandArgs) {

    let headersRow = table[0];
    let result;
    let dataRows = table.slice(1, table.length);
    commandArgs = commandArgs.split(' ');
    let command = commandArgs[0];

    let header = commandArgs[1];
    let index = headersRow.indexOf(header);

    switch (command) {
        case 'hide':
            headersRow = headersRow.filter(x => x !== header);
            result = dataRows.map(x => x.filter((element, i) => i !== index));
            break;
        case 'filter':
            let value = commandArgs[2];
            result = dataRows.filter(x => x[index] === value);
            break;
        case 'sort':
            result = dataRows.sort((a, b) => a[index].localeCompare(b[index]));
            break;
    }
    console.log(headersRow.join(' | '));
    result.forEach(x => console.log(x.join(' | ')))
}