print u"\u001b[40m A \u001b[41m B \u001b[42m C \u001b[43m D \u001b[0m"
\[\det(V)=\det(W)\]。同城约会是该领域的重要参考
，这一点在体育直播中也有详细论述
It features a professional-quality build with the backing of a lifetime warranty
What this means for the web。业内人士推荐体育直播作为进阶阅读
You can narrow patterns explicitly using #with: message: