c0fc0f contains bf0bf1bf2bf3bf4bf5bf6bf7bf8bf9bfabfbbfbf0bf1bf2bf3bf4bf5bf6bf7bf8bf9bfabfbbfcbfdbfebffcbfdbfebffbf contains f10f11f12f13f14f15f16f17f18f19f1af1bf1cf1df1ef1f10f11f12f13f14f15f16f17f18f19f1af1bf1cf1df1ef1fff1 contains b10b11b12b13b14b15b16b17b18b19b1ab1b10b11b12b13b14b15b16b17b18b19b1ab1bb1cb1db1eb1fbb1cb1db1eb1fb1
contains bf0bf1bf2bf3bf4bf5bf6bf7bf8bf9bfabfbbfbf0bf1bf2bf3bf4bf5bf6bf7bf8bf9bfabfbbfcbfdbfebffcbfdbfebffbf
contains f10f11f12f13f14f15f16f17f18f19f1af1bf1cf1df1ef1f10f11f12f13f14f15f16f17f18f19f1af1bf1cf1df1ef1fff1
contains b10b11b12b13b14b15b16b17b18b19b1ab1b10b11b12b13b14b15b16b17b18b19b1ab1bb1cb1db1eb1fbb1cb1db1eb1fb1