//#include #include #include #define _CRT_SECURE_NO_WARNINGS using namespace std; // 펠린드롬 65 = A int main() { int size; string arr; int odd_num = 0; int a_pre[27] = { 0 }; char pelind[51] = { 0, }; cin >> arr; size = arr.size(); int fr = 0; int r = size - 1; for (int i = 0; i < size; i++) { a_pre[(arr[i] - '0') - 17]++; } for (int i = 0; i < 26; i++) { if (a_pre[i] != 0 && a_pre[i] % 2 == 1) { o..