// yukicoder: No.3029 素因数 // 2019.6.18 bal4u /* Prime Factors Decomposition https://www.dcode.fr/prime-factors-decomposition 26180411287263107299803976957264203054160842086839438580 = 2^2 × 5 × 7369130657357778596659 × 177635683940025046467781066894531 */ #include //char t[] = {1, 7, 11, 17, 19, 21, 23, 25, 31, 33, 37, 0}; // even int f[50] = { 0,1,0,0,0,0,0,1,0,0, 0,1,0,0,0,0,0,1,0,1, 0,1,0,1,0,1,0,0,0,0, 0,1,0,1,0,0,0,1,0,0,0 }; int main() { int i, M; scanf("%d", &M); puts(f[M]? "even": "odd"); return 0; }