문제

링크

풀이

#include <iostream>
#include <string>
using namespace std;
 
void solve(void) {
  string s; cin >> s;
 
  int ans = (s[0] == 'c' ? 26 : 10);
  for (int i=1; i<s.length(); i++) {
    ans *= (s[i] == 'c' ? 26 : 10) - (s[i] == s[i-1]);
  }
  cout << ans;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}