There is a grid with H rows and W columns.  The square at the i-th row and j-th column contains a string S_{i,j} of length 5.  The rows are labeled with the numbers from 1 through H, and the columns are labeled with the uppercase English letters from `A` through the W-th letter of the alphabet.    Exactly one of the squares in the grid contains the string `snuke`. Find this square and report its location.  For example, the square at the 6-th row and 8-th column should be reported as `H6`.
h,w=map(int,input().split())
S=[]
ans=0
ans1=0
W=['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
for i in range(h):
  S.append(input().split())
for k in range(h):
  for j in range(w):
    if S[k][j]=='snuke':
      ans=j
      ans1=str(k)
print(W[ans]+ans1)  
h,w=map(int,input().split())
S=[]
ans=0
ans1=0
W=['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
for i in range(h):
  S.append(input().split())
for k in range(h):
  for j in range(w):
    if S[k][j]=='snuke':
      ans=j
      ans1=str(k+1)
print(W[ans]+ans1)  