#include using namespace std; typedef signed long long ll; #undef _P #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) //------------------------------------------------------- int N; string A[3][3]={ {"ABC","DEF","GHCG"}, {"AABC","DEFG","HIBCJ"}, {"ABCDEF","GDFHI","BDJEDJ"}, }; void solve() { int i,j,k,l,r,x,y; string s; cin>>N; vector V; FOR(i,10) V.push_back(i); do { string B[3]; FOR(i,3) { FORR(c,A[N-1][i]) B[i]+='0'+V[c-'A']; } if(B[0][0]=='0') continue; if(B[1][0]=='0') continue; if(B[2][0]=='0') continue; int x=atoi(B[0].c_str()); int y=atoi(B[1].c_str()); int z=atoi(B[2].c_str()); if(x+y==z) { //cout<