#include <iostream> #include <cstring> using namespace std; long long dp[18][4][4][4][4][4][4][4][4][4][4]; #define FORN( n ) for ( int i##n = 0; i##n < 4; i##n ++ ) int main() { memset( dp, 0, sizeof( dp ) ); FORN( 0 ) FORN( 1 ) FORN( 2 ) FORN( 3 ) FORN( 4 ) FORN( 5 ) FORN( 6 ) FORN( 7 ) FORN( 8 ) FORN( 9 ) dp[0][i0][i1][i2][i3][i4][i5][i6][i7][i8][i9] = 1; for ( int r = 1; r <= 17; r ++ ) { FORN