A synthesis gas analyzing $6\mathrm{.}4\%$ CO$2,0\mathrm{.}2\%$ O$2,40\mathrm{.}0\%$ CO$,$ and $50\mathrm{.}8\%$ H$2($the balance is N$2)$ is burned with $40\%$ dry excess air. What is the composition of the flue gas?