S=input()
S=S.replace("keyence","A")
if S=="A":
    print("YES")
    exit()
elif S[0]=="A" and S[len(S)-1]!="A":
    print("YES")
    exit()
elif S[len(S)-1]=="A":
    print("YES")
    exit()
    
S1=S.replace("K","A")
S1=S1[::-1]
S1=S1.replace("ecneye","B")
S1=S1[::-1]
if S1[0]=="A" and S1[len(S1)-1]=="B":
    print("YES")
    exit()
S2=S.replace("Ke","A")
S2=S2[::-1]
S2=S2.replace("ecney","B")
S2=S2[::-1]
if S2[0]=="A" and S2[len(S2)-1]=="B":
    print("YES")
    exit()
S3=S.replace("Key","A")
S3=S3[::-1]
S3=S3.replace("ecne","B")
S3=S3[::-1]
if S3[0]=="A" and S3[len(S3)-1]=="B":
    print("YES")
    exit()
S4=S.replace("Keye","A")
S4=S4[::-1]
S4=S4.replace("ecn","B")
S4=S4[::-1]
if S4[0]=="A" and S4[len(S4)-1]=="B":
    print("YES")
    exit()
S5=S.replace("Keyen","A")
S5=S5[::-1]
S5=S5.replace("ec","B")
S5=S5[::-1]
if S5[0]=="A" and S5[len(S5)-1]=="B":
    print("YES")
    exit()
S6=S.replace("Keyenc","A")
S6=S6.replace("e","B")
if S6[0]=="A" and S6[len(S6)-1]=="B":
    print("YES")
    exit()
print("NO")