function solve(input) {
  let lastSector = input.shift();
  let countOfRows = +input.shift();
  let countOfPlaceOfOddRows = +input.shift();
  let totalCountOfPlace = 0;
  let test = lastSector.charCodeAt(0);

  for (let i = 65; i <= lastSector.charCodeAt(0); i++) {
    for (let j = 97; j <= 96 + countOfRows; j++) {
      if ((j - 96) % 2 == 1) {
        for (let k = 1; k <= countOfPlaceOfOddRows; k++) {
          console.log(`${String.fromCharCode(i)}${k}${String.fromCharCode(j)}`);
          totalCountOfPlace++;
        }
      } else {
        for (let k = 1; k <= countOfPlaceOfOddRows + 2; k++) {
          console.log(`${String.fromCharCode(i)}${k}${String.fromCharCode(j)}`);
          totalCountOfPlace++;
        }
      }
    }

    countOfRows++;
  }

  console.log(`${totalCountOfPlace}`);
}