2. 数据单元的变量替换

const readline = require('readline');
const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
});

rl.on('line', (line) => {
    const tmp2 = line.split(',');
    const cells = {};
    for(let i=0; i<tmp2.length; i++) {
        cells[String.fromCharCode(65+i)] = tmp2[i];
    }

    let res = '';
    for(let cell of tmp2) {
        let res1 = cell.indexOf('<');
        let res2 = cell.indexOf('>');

        if (res1 == -1 && res2 == -1) {
            res += cell + ','
        } else if (res1 == -1 || res2 == -1 || res1 > res2 || res2 - res1 !== 2) {
            console.log(-1);
            return;
        } else {
            res += cell.substring(0, res1) + cells[cell.charAt(res1 + 1)] + cell.substring(res2 + 1) + ',';
        }
    }
    console.log(res.substring(0, res.length - 1));
})