#include #include #include using namespace std; #define LL long long #define ld long double const LL inf=(LL)1e13; const ld eps=1e-7; int main(){ int n; cin>>n; while(n--){ ld a,b; LL x,y,z; cin>>a>>b; ld c=b*log10(a); LL l,h; l=0,h=inf; //cout<1){ LL m=(l+h)/2; if(m1){ LL m=(l+h)/2; if(log10(m)