#include using namespace std; #define rep(i, a, n) for(int i=(a); i<(n); ++i) #define per(i, a, n) for(int i=(a); i>(n); --i) #define pb emplace_back #define mp make_pair #define clr(a, b) memset(a, b, sizeof(a)) #define all(x) (x).begin(),(x).end() #define lowbit(x) (x & -x) #define fi first #define se second #define lson o<<1 #define rson o<<1|1 #define gmid l[o]+r[o]>>1 using LL = long long; using ULL = unsigned long long; using pii = pair; using PLL = pair; using UI = unsigned int; const int mod = 1e9 + 7; const int inf = 0x3f3f3f3f; const double EPS = 1e-8; const double PI = acos(-1.0); char s[20] = "kadomatsu"; char t[20]; int main(){ scanf("%s", t); int n = strlen(s); int m = strlen(t); int j = 0; rep(i, 0, m){ while(j < n && s[j] != t[i]) ++j; if(j == n){ puts("No"); return 0; } ++j; } puts(j == n ? "Yes" : "No"); return 0; }