c语言问题求助

代码如下：#include stdio.hstatic unsigned long int next =1;int rand0(void){next=next*1103515245+12345;return (unsigned int)(next/65536)%32768;}int main(void){int count;for(count=0;count5;count++)printf("%hdn",rand0());return 0;}运行结果是168385758101131751531051我不太理解这些结果是怎么得来的？next=next*1103515245+12345;return (unsigned int)(next/65536)%32768;这一句也理解不了，求大佬解疑答惑。