#include <iostream>
using namespace std;
int englishCalculate(char);
int numberCalculate(char,int);

int main() {
  char idCard[10];
  int total;

  cout << "請輸入欲被檢查之身分證\n";
  cin >> idCard;

  total = englishCalculate(idCard[0]);
  for (int x = 1; x < 10; x++) {
    total += numberCalculate(idCard[x] - 48,x);
  }
  if (total % 10 == 0) {
    cout << "正確!!";
  } else {
    cout << "錯誤!!";
  }

  return 0;
}

int englishCalculate(char idCard) {
  int x;
  switch(idCard) {
    case 'A':
    case 'B':
    case 'C':
    case 'D':
    case 'E':
    case 'F':
    case 'G':
    case 'H':
      x = 55;
      break;
    case 'I':
      x = 39;
      break;
    case 'J':
    case 'K':
    case 'L':
    case 'M':
    case 'N':
      x = 56;
      break;
    case 'O':
      x = 35;
      break;
    case 'P':
    case 'Q':
    case 'R':
    case 'S':
    case 'T':
    case 'U':
    case 'V':
      x = 57;
      break;
    case 'W':
      x = 55;
      break;
    case 'X':
    case 'Y':
      x = 58;
      break;
    case 'Z':
      x = 57;
      break;
    default:
      cout << "錯誤!!";
  }

  return (idCard - x) / 10 + ((idCard - x) % 10) * 9;
}

int numberCalculate(char idCard,int x) {
  int y;
  if (x == 9) {
    y = 1;
  } else {
    y = 9 - x;
  }
  return idCard * y;
}