#include #define rep(i,a) for(int i=(int)0;i<(int)a;++i) #define rrep(i,a) for(int i=(int)a-1;i>=0;--i) #define REP(i,a,b) for(int i=(int)a;i<(int)b;++i) #define RREP(i,a,b) for(int i=(int)a-1;i>=b;--i) #define pb push_back #define eb emplace_back #define all(x) x.begin(),x.end() #define rall(x) x.rbegin(),x.rend() typedef std::vector vi; typedef std::vector> vvi; typedef std::vector vl; typedef std::vector> vvl; #define out(x) cout< inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } template inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } using namespace std; void solve(){ // string a,b; // cin>>a>>b; // string s="",t=""; // rep(i,a.size()){ // if('0'<=a[i]&&a[i]<='9')s+=a[i]; // } // rep(i,b.size()){ // if('0'<=b[i]&&b[i]<='9')t+=b[i]; // } // cout<>a>>b; cout<