编写函数，计算29*27*25*...*1的结果。

下面是C语言的代码实现：\```\#inclu <stdi.h>\voi mai(){\ i x, multiply = 1;\ for(x = 29; x >= 1; x -= 2){\ multiply *= x;\ }\ printf(\"%\\\", multiply);\}\```\下面是Jav的代码实现：\```jav\publi class Mai {\ publi stati voi mai(String[] args) {\ i = 29;\ i resu = 1;\ whi( >= 1){\ resu *= ; -= 2;\ }\ System.ou.pri(resu);\ }\}\```\