00ffff contains 0f00f0f00f10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff0f contains ff0ff1ff2ff3ff4ff5ff6ff7ff8ff9ffaffbffcffdffeffff0ff1ff2ff3ff4ff5ff6ff7ff8ff9ffaffbffcffdffefff contains 0f00f0f00f10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff0f
contains 0f00f0f00f10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff0f
contains ff0ff1ff2ff3ff4ff5ff6ff7ff8ff9ffaffbffcffdffeffff0ff1ff2ff3ff4ff5ff6ff7ff8ff9ffaffbffcffdffefff
contains 0f00f0f00f10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff10f20f30f40f50f60f70f80f90fa0fb0fc0fd0fe0ff0f