import sys

s=input()
a,b,c,d,e,f,g=0
while s[a]!="k":
    a+=1
    if a==len(s):
        print("NO")
        sys.exit()
b=a+1
while s[b]!="e":
    b+=1
    if b==len(s):
        print("NO")
        sys.exit()
c=b+1
while s[c]!="y":
    c+=1
    if c==len(s):
        print("NO")
        sys.exit()
d=c+1
while s[d]!="e":
    d+=1
    if d==len(s):
        print("NO")
        sys.exit()
e=d+1
while s[e]!="n":
    e+=1
    if e==len(s):
        print("NO")
        sys.exit()
f=e+1
while s[f]!="c":
    f+=1
    if f==len(s):
        print("NO")
        sys.exit()
g=f+1
while s[g]!="e":
    g+=1
    if not "e" in s[g]:
        print("NO")
        sys.exit()
if s=="keyence":print("YES")
else:
    if b+g==c+f==d+e:
        print("YES")
    elif a==0 and b!=1 and(c==b+1 and d==c+1 and e==d+1 and f==e+1 and g==f+1):
        print("YES")
    elif a==0 and b==1 and c!=2 and(d==c+1 and e==d+1 and f==e+1 and g==f+1):
        print("YES")
    elif a==0 and b==1 and c==2 and d!=3 and (e==d+1 and f==e+1 and g==f+1):
        print("YES")
    elif a==0 and b==1 and c==2 and d==3 and e!=4 and (f==e+1 and g==f+1):
        print("YES")
    elif a==0 and b==1 and c==2 and d==3 and e==4 and f!=5 and g==f+1:
        print("YES")
    elif a==0 and b==1 and c==2 and d==3 and e==4 and f!=5 and g!=6:
        print("YES")
    else:
        print("NO")