#include using namespace std; #define repl(i,a,b) for(int i=(int)(a);i<(int)(b);i++) #define rep(i,n) repl(i,0,n) #define mp(a,b) make_pair((a),(b)) #define pb(a) push_back((a)) #define all(x) (x).begin(),(x).end() #define uniq(x) sort(all(x)),(x).erase(unique(all(x)),end(x)) #define fi first #define se second #define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__) void _dbg(string){cout< void _dbg(string s,H h,T... t){int l=s.find(',');cout< ostream& operator<<(ostream& o, const pair &p){o<<"("< ostream& operator<<(ostream& o, const vector &v){o<<"[";for(T t:v){o<>s; string t(s.size(),'0'); rep(i,s.size()) if(s[i]=='7'){ s[i]='6'; t[i]='1'; } int x = stoi(t); cout << s << " " << x << endl; return 0; }