#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; typedef vector vi; typedef vector vvi; typedef vector vvvi; typedef vector vvvvi; typedef pair pi; typedef pair ppi; typedef pair pppi; typedef pair ppppi; #define FOR(i,l,r) for(ll i=l;i=l;i--) #define RREP(i,n) RFOR(i,0,n) #define ALL(x) x.begin(),x.end() #define F first #define S second #define BS(A,x) binary_search(ALL(A),x) #define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin()) #define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin()) #define COU(A,x) (UB(A,x)-LB(A,x)) #define sz(c) ((ll)(c).size()) /* #include namespace mp=boost::multiprecision; using Bint=mp::cpp_int; */ templateusing min_priority_queue=priority_queue,greater>; templateostream&operator<<(ostream&os,pair&p){os<istream&operator>>(istream&is,pair&p){is>>p.F>>p.S;return is;} templateostream&operator<<(ostream&os,vector&v){REP(i,sz(v))os<istream&operator>>(istream&is,vector&v){for(T&in:v)is>>in;return is;} templatebool chmax(T&a,T b){if(abool chmin(T&a,T b){if(b vm; typedef vector vvm; typedef vector vvvm; typedef vector vvvvm; ostream&operator<<(ostream&os,mint&a){os<>T; while(T--){ ll N,X;cin>>N>>X; bool t=0; if(N==1e18){ t=1; N--; } vvvvm DP(18,vvvm(4,vvm(2,vm(20)))); string S=to_string(N); while(sz(S)<18)S="0"+S; reverse(ALL(S)); REP(a,10)REP(b,10)DP[0][3-(a<=S[0]-'0')-2*(b<=S[0]-'0')][(a+b)>9][(a+b)>9]++; FOR(i,1,18){ REP(a,10)REP(b,10)REP(s,4)REP(t,2)REP(x,19){ ll p=0; if(a>S[i]-'0'||(a==S[i]-'0'&&s%2))p++; if(b>S[i]-'0'||(b==S[i]-'0'&&s/2))p+=2; ll q=a+b+t>9; DP[i][p][q][q+x]+=DP[i-1][s][t][x]; } } mint ans=DP[17][0][0][X]+DP[17][0][1][X]; if(t&&X==0){ N++; ans+=2*N%mod*(N+1)%mod+1; } cout<