n = int(raw_input())
if n >= -128 and n <= 127:
    print "byte"
elif n >= -32768 and n <= 32767:
    print "short"
elif n >= -2147483648 and n <= 2147483647:
    print "int"
elif n >= -9223372036854775808 and n <= 9223372036854775807:
    print "long"
else:
    print "BigInteger"
