S = input()
O = S.find('OOO')
X = S.find('XXX')
print(O, X)

if O == -1 and X == -1:
    print('NA')
elif O == -1:
    print('West')
elif X == -1:
    print('East')
elif O > X:
    print('West')
elif X > O:
    print('East')