#include #include #include #include #include #include #include #include #include #include #define sd(x) scanf("%d",&x); #define sd2(x,y) scanf("%d %d",&x,&y); #define sd3(x,y,z) scanf("%d %d %d",&x,&y,&z); #define sull(x) scanf("%ull",&x); #define print(x) printf("%d\n",x); #define print2(x,y) printf("%d %d\n",x,y); #define print3(x,y,z) printf("%d %d %d\n",x,y,z); #define printull(x) printf("%ull\n",x); using namespace std; long long exp(long long a, long long b, long long p){ long long res = 1; while(b){ if(b&1) res = (res*a)%p; a = (a*a)%p; b >>= 1; } return res; } /*Divide and conquer approach for finding the sum of a GP in O(log^2 n) time*/ long long gp(long long r, long long n, long long p){ if(n == 0) return (1%p); else if(n == 1) return (1+r)%p; else{ if(n&1){ return ( ( (1 + exp(r,(n+1)/2,p) )%p) * gp(r,(n-1)/2,p) )%p; } else{ return (((( (1 + exp(r,n/2,p)) %p) * gp(r,(n-1)/2,p) )%p) + exp(r,n,p))%p; } } } int main(){ int t; int a,d,r,n,MOD; long long x,sum; sd(t); while(t--){ scanf("%d %d %d",&a,&d,&r); scanf("%d %d",&n,&MOD); x = (a * exp(r,(n-1)/2,MOD))%MOD; sum = (d * gp(r,(n-1)/2,MOD) )%MOD; if(n&1){ printf("%lld\n",(((x+sum)%MOD) - (d%MOD) + MOD)%MOD); } else{ printf("%lld\n",(x+sum)%MOD); } } return 0; }