import std.conv, std.stdio, std.string; import std.algorithm, std.array, std.bigint, std.container, std.math, std.numeric, std.range, std.regex, std.typecons; import core.bitop; class EOFException : Throwable { this() { super("EOF"); } } string[] tokens; string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; } int readInt() { return readToken.to!int; } long readLong() { return readToken.to!long; } real readReal() { return readToken.to!real; } bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } } bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } } int binarySearch(T)(in T[] as, in bool delegate(T) test) { int low = -1, upp = cast(int)(as.length); for (; low + 1 < upp; ) { int mid = (low + upp) >> 1; (test(as[mid]) ? low : upp) = mid; } return upp; } int lowerBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a < val)); } int upperBound(T)(in T[] as, in T val) { return as.binarySearch((T a) => (a <= val)); } enum MO = 10L^^9 + 7; enum V = 10; long[][] mul(long[][] a, long[][] b) { auto ret = new long[][](V, V); foreach (u; 0 .. V) foreach (w; 0 .. V) foreach (v; 0 .. V) { (ret[u][v] += a[u][w] * b[w][v]) %= MO; } return ret; } void main() { /* 0 1 2 3 4 5 6 7 8 9 - - - - - - - - - = - - - = = - - - = - */ auto A = new long[][](V, V); ++A[0][0]; ++A[1][1]; foreach (v; 2 .. 8) ++A[0][v]; foreach (u; 2 .. 8) ++A[u][1]; ++A[2][2]; ++A[2][3]; ++A[2][4]; ++A[3][2]; ++A[3][3]; ++A[3][4]; ++A[3][5]; ++A[3][6]; ++A[4][2]; ++A[4][3]; ++A[4][4]; ++A[4][5]; ++A[4][6]; ++A[4][7]; ++A[5][3]; ++A[5][4]; ++A[5][5]; ++A[5][6]; ++A[6][3]; ++A[6][4]; ++A[6][5]; ++A[6][6]; ++A[6][7]; ++A[7][4]; ++A[7][6]; ++A[7][7]; ++A[8][8]; ++A[0][8]; ++A[2][8]; ++A[7][8]; ++A[8][4]; ++A[9][9]; ++A[4][9]; ++A[9][1]; ++A[9][2]; ++A[9][7]; try { for (; ; ) { const N = readLong(); auto a = A; auto b = new long[][](V, V); foreach (u; 0 .. V) { b[u][u] = 1; } for (long n = N + 1; n; n >>= 1) { if (n & 1) { b = mul(b, a); } a = mul(a, a); } writeln(b[0][1]); } } catch (EOFException e) { } }