Colors=[]
Colors.append(set(["gray","brown","green","cyan","blue","yellow","orange","red"]))
Colors.append(set(["gray","green","blue","yellow","red"]))
Colors.append(set(["gray","green","cyan","blue","violet","orange","red"]))
S=list(input().split())
cands=[[0,0,0] for _ in range(3)]
for i,s in enumerate(S):
    for j,colors in enumerate(Colors):
        if s in colors:cands[i][j]+=1
for i in range(3):
    if sum(cands[i])==1:
        for ii in range(3):
            if ii==i:continue
            cands[ii][cands[i].index(1)]=0
for j in range(3):
    sm=0
    ii=-1
    for i in range(3):
        sm+=cands[i][j]
        if cands[i][j]==1:ii=i
    if sm==1:
        for jj in range(3):
            if jj==j:continue
            cands[ii][jj]=0
if sum(cands[0])==1 and sum(cands[1])==1 and sum(cands[2])==1:exit(print("Yes"))
if sum(cands[0])==1 and sum(cands[1])==2 and sum(cands[2])==2 and S[1]==S[2]:exit(print("Yes"))
if sum(cands[0])==2 and sum(cands[1])==1 and sum(cands[2])==2 and S[0]==S[2]:exit(print("Yes"))
if sum(cands[0])==2 and sum(cands[1])==2 and sum(cands[2])==1 and S[0]==S[1]:exit(print("Yes"))
if sum(cands[0])==3 and sum(cands[1])==3 and sum(cands[2])==3 and S[0]==S[1]==S[2]:exit(print("Yes"))
print("No")