#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define loop(i,a,b) for(int i=a;i pii; typedef vector vi; typedef vector vvi; typedef vector vp; typedef vector vvp; typedef vector vs; typedef vector vd; typedef vector vvd; typedef pair pip; typedef vectorvip; const double PI=acos(-1); const double EPS=1e-7; const int inf=1e8; const ll INF=1e16; int dx[4]={0,1,0,-1}; int dy[4]={1,0,-1,0}; #define MOD 1000000007 typedef vvi SegT; vvi defvalue; vvi defvalue2; SegT f(SegT A,SegT B){ vvi C(A.size(),vi(B[0].size())); rep(i,A.size())rep(k,B.size())rep(j,B[0].size()) (C[i][j]+=A[i][k]*B[k][j])%=MOD; return C; } class SegTree{ private: vectorval; int n; SegT combine(SegT a,SegT b){return f(b,a);} public: SegTree(int size){ n=1; while(n(2*n,defvalue); } SegTree(const vector &in){ n=1; while(n(2*n,defvalue); for(int i=n-1+in.size()-1;i>=0;i--){ if(n-1<=i)val[i]=in[i-(n-1)]; else val[i]=combine(val[i*2+1],val[i*2+2]); } } void update(int q,int i,ll a){ i+=n-1; if(!q)val[i][0][2]=a; else{ val[i][1][1]=a; val[i][2][1]=2*a; val[i][2][2]=a*a%MOD; } while(i>0){ i=(i-1)/2; val[i]=combine(val[i*2+1],val[i*2+2]); } } SegT query(int a,int b,int k=0,int l=0,int r=-1){//[a,b) if(r==-1)r=n; if(r<=a||b<=l)return defvalue2; if(a<=l&&r<=b)return val[k]; else return combine(query(a,b,k*2+1,l,(l+r)/2),query(a,b,k*2+2,(l+r)/2,r)); } void tmp(){ rep(i,val.size()){ cout<>n>>q; SegTree st(n+1); assert(1<=n&&n<=100000); assert(1<=q&&q<=20000); int x,y; while(q--){ // st.tmp(); int a,b; char c; cin>>c; if(c=='x'){ cin>>a>>b; assert(0<=a&&a>a>>b; assert(0<=a&&a>a; assert(0<=a&&a<=n); vvi t=st.query(0,a); cout<<(t[0][0]+t[0][1]+t[0][2]+t[0][3])%MOD<