napis = input()
TakNie = "TAK"
jaka = napis[0]
for i in range(0, len(napis)):
if jaka == napis[i]:
TakNie = "TAK"
else:
TakNie = "NIE"
jaka = napis[i]
print(TakNie)
bmFwaXMgPSBpbnB1dCgpClRha05pZSA9ICJUQUsiCmpha2EgPSBuYXBpc1swXQpmb3IgaSBpbiByYW5nZSgwLCBsZW4obmFwaXMpKToKICAgIGlmIGpha2EgPT0gbmFwaXNbaV06CiAgICAgICAgVGFrTmllID0gIlRBSyIKICAgIGVsc2U6CiAgICAgICAgVGFrTmllID0gIk5JRSIKICAgICAgICBqYWthID0gbmFwaXNbaV0KcHJpbnQoVGFrTmllKQ==