#line 1 "a.cpp" #include #include using namespace std; #line 1 "/home/kotatsugame/library/math/extgcd.cpp" template T extgcd(T a,T b,T&x,T&y) { if(b==0) { x=1; y=0; return a; } T q=a/b; T g=extgcd(b,a-q*b,y,x); y-=q*x; return g; } #line 3 "/home/kotatsugame/library/math/modint.cpp" #include template struct modint{ unsigned int x; constexpr modint()noexcept:x(){} template constexpr modint(T x_)noexcept:x((x_%=m)<0?x_+m:x_){} constexpr unsigned int val()const noexcept{return x;} constexpr modint&operator++()noexcept{if(++x==m)x=0;return*this;} constexpr modint&operator--()noexcept{if(x==0)x=m;--x;return*this;} constexpr modint operator++(int)noexcept{modint res=*this;++*this;return res;} constexpr modint operator--(int)noexcept{modint res=*this;--*this;return res;} constexpr modint&operator+=(const modint&a)noexcept{x+=a.x;if(x>=m)x-=m;return*this;} constexpr modint&operator-=(const modint&a)noexcept{if(x>=1)if(n&1)r*=x; return r; } constexpr modint inv()const noexcept { int s=x,t=m,x=1,u=0; while(t) { int k=s/t; s-=k*t; swap(s,t); x-=k*u; swap(x,u); } return modint(x); } friend constexpr modint operator+(const modint&a,const modint&b){return modint(a)+=b;} friend constexpr modint operator-(const modint&a,const modint&b){return modint(a)-=b;} friend constexpr modint operator*(const modint&a,const modint&b){return modint(a)*=b;} friend constexpr modint operator/(const modint&a,const modint&b){return modint(a)/=b;} friend constexpr bool operator==(const modint&a,const modint&b){return a.x==b.x;} friend constexpr bool operator!=(const modint&a,const modint&b){return a.x!=b.x;} friend ostream&operator<<(ostream&os,const modint&a){return os<>(istream&is,modint&a){long long v;is>>v;a=modint(v);return is;} }; #line 6 "a.cpp" using mint=modint<(int)1e9+7>; int T; long A[3],Y; main() { cin>>T; for(;T--;) { cin>>A[0]>>A[1]>>A[2]>>Y; sort(A,A+3); mint ans=0; long x,y; long g=extgcd(A[0],A[1],x,y); long a=A[0]/g,b=A[1]/g; for(;Y>=0;Y-=A[2]) { if(Y%g!=0)continue; long nx=Y/g*x,ny=Y/g*y; if(nx>=ny) { long L=(-ny+a-1)/a; long R=nx/b; if(L<=R)ans+=R-L+1; } else { long L=(-nx+b-1)/b; long R=ny/a; if(L<=R)ans+=R-L+1; } } cout<