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#include #include #include #include #include #include #include #include #include #include #include using namespace std; #define N 5005 #define ll __int64 inline ll Abs(ll x){return x>0?x:-x;} int main(){ ll i, j, T;cin>>T; while(T--){ ll x1,y1,x2,y2,n,m; scanf("%I64d %I64d %I64d %I64d %I64d %I64d",&n,&m,&x1,&y1,&x2,&y2); ll minn = min(x1,x2), maxx = max(x1,x2); x1 = minn, x2 = maxx; x2 -= x1-1; x1 = 1; minn = min(y1,y2), maxx = max(y1,y2); y1 = minn, y2 = maxx; y2 -= y1-1; y1 = 1; if(x1==x2 || y1==y2) { if(y1==y2) { swap(n,m); swap(x1,y1); swap(x2,y2); } ll cha1 = y2-y1-1, cha2 = m - y2; cha1 -= cha2; cha1 = max(cha1, 0ll); printf("%I64d\n",n*cha1); } else { ll x3 = x1+(n-x2), y3 = y1+(m-y2);; if(x3>=(x2-1) && y3>=(y2-1)) printf("%I64d\n", (x2-x1)*(y2-y1)*2); else printf("%I64d\n",n*m-(x3-x1+1)*(y3-y1+1)*2); } } return 0; }