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`.
# CODE FESTIVAL 2016 Final: A – Where's Snuke?
h, w = [int(s) for s in input().split()]
s = [[s for s in input().split()] for _ in range(h)]
characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

for i in range(h + 1):
    if 'snuke' in s[i]:
        print(characters[i] + str(s[i].index('snuke') + 1))
        break
# CODE FESTIVAL 2016 Final: A – Where's Snuke?
alphabets ='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
h, w = map(int, input().split())
s = [[s for s in input().split()] for _ in range(h)]

for i in range(h):
    if 'snuke' in s[i]:
        print(alphabets[s[i].index('snuke')] + str(i + 1))
        break