A particular compound contains only C, H, N, and O. When 615 mg of this compound are burned in air, 712 mg of carbon dioxide and 369 mg of water are created. When subjected to kjeldahl analysis,, 299 mg of hydrogen chloride are required to titrate the ammonia formed from a second 615 mg sample. Write the empirical formyula of the compound in the format CwHxNyOz, where the w, x, y, and z are integers.