#include using namespace std; using Int32 = int_fast32_t; using Word32 = uint_fast32_t; using Int64 = int_fast64_t; using Word64 = uint_fast64_t; using Int128 = __int128_t; using Word128 = __uint128_t; using Int = int_fast64_t; using Word = uint_fast64_t; using VInt = vector; using VVI = vector; using VWord = vector; using VVW = vector; using VS = vector; using VVS = vector; using VB = vector; using VVB = vector; using PII = pair; using PWW = pair; using VPII = vector; using VPWW = vector; #define SZ(x) ((Int)(x).size()) #define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end()) #define rep(i,n) for(Int i=0, i##_len=(n); i> n; Int128 x, y, z; x = (Int128(n) + 3) / 2; y = (Int128(n) + 2) / 2; z = (x * y - 1) % 1000007; cout << static_cast(z) << endl; return 0; }