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  1. /*
  2. в”Џв•— в”Џв•—
  3. ║┃ ║┃╔━╦╦┳═╗
  4. в•‘в”ѓ в”ѓв•љв”«в•‘в”ѓв”ѓв”ѓв•©в”«
  5. в”—в•ќ в•љв”Ѓв•©в•ђв”»в”Ѓв•©в”Ѓв•ќ
  6. в•”в”“в•”в”“
  7. ║╚┛┣═╦┳╗
  8. в”—в•—в”Џв•Јв”ѓв”ѓв•‘в”ѓ
  9. в”—в•ќв”—в•ђв”»в•ђв•ќ
  10. */
  11. #include <bits/stdc++.h>
  12. #define fast ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
  13. #define int long long
  14. #define double long double
  15. #define pii pair<int, int>
  16. #define vi vector <int>
  17. #define pb push_back
  18. #define fir first
  19. #define sec second
  20. #define all(x) (x).begin(), (x).end()
  21. #define rall(x) (x).rbegin(), (x).rend()
  22. #define sz(a) signed(a.size())
  23. using namespace std;
  24. const double pi = 3.141592653589793238462643383279;
  25. const int MOD = 998244353;
  26. const int INF = 1e9;
  27. const double eps = 0.000000000000001;
  28.  
  29. template<typename T1, typename T2>inline void chkmin(T1 &x, T2 y) { if (x > y) x = y; }
  30. template<typename T1, typename T2>inline void chkmax(T1 &x, T2 y) { if (x < y) x = y; }
  31. template<class T> inline istream& operator>>(istream& str, vector <T> &a) { for (auto &i : a) str >> i; return str; }
  32.  
  33.  
  34. void boot_up() {
  35. #ifdef LOCAL
  36.     freopen("input.txt", "r", stdin);
  37.     //freopen("output.txt", "w", stdout);
  38. #endif
  39.     fast;
  40.     cout.setf(ios::fixed); cout.precision(15);
  41. }
  42.  
  43. signed main(){
  44.     boot_up();
  45.     //freopen("input.txt", "r", stdin);
  46.     //freopen("g.txt", "w", stdout);
  47.     ifstream fin("f.txt");
  48.     ofstream fout("g.txt");
  49.     int last = 0, fl = 0;
  50.     string s;
  51.     while (getline(fin, s)) {
  52.         int res = 0;
  53.         //cout << s[0] << endl;
  54.         int poin = 0;
  55.         while (s[poin] == ' ') poin++;
  56.         if (s[poin] - '0' >= 0 && s[poin] - '9' <= 0) {
  57.             int p = poin;
  58.             while (p < s.size() && s[p] - '0' >= 0 && s[p] - '0' <= 9) {
  59.                 p++;
  60.             }
  61.             int k = 1;
  62.             for (int i = p - 1; i >= poin; i--) {
  63.                 res += (s[i] - '0') * k;
  64.                 k *= 10;
  65.             }
  66.             if (s.size() <= p) {
  67.                 if (fl == 1 && res >= last) continue;
  68.                 if (fl == 28 && res <= last) continue;
  69.             }
  70.             if (!fl) {
  71.                 p++;
  72.                 if (s[p] == 'D') fl = 1;
  73.                 else fl = 28;  
  74.             } else fl = 0;
  75.            
  76.  
  77.         } else if (s[poin] == 'D') {
  78.             if (fl == 28) continue;
  79.             res = 1;
  80.             fl = 0;
  81.         } else if (s[poin] == 'U') {
  82.             if (fl == 1) continue;
  83.             res = 28;
  84.             fl = 0;
  85.         }
  86.         if (res == last) continue;
  87.         fout << res << endl;
  88.         last = res;
  89.     }
  90.     return 0;
  91. }
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