异或卷积，把一个三元组\(\{a_i,b_i,c_i\}\)转化为\(F_i[a_i]=x\)，\(F_i[b_i]=y\)，\(F_i[c_i]=z\)的幂级数，将\(\prod\limits_{i=1}^n\text{FWT}(F_i)\)执行\(\text{IFWT}\)即可考虑从每个幂级数只有\(3\)个非零值入手优化，设\(c(i,j)\)表示异或卷积的变换系数，即\(\text{