efcefc contains ec0ec1ec2ec3ec4ec5ec6ec7ec8ec9ecaecbeccecdecec0ec1ec2ec3ec4ec5ec6ec7ec8ec9ecaecbeccecdeceecfeecfec contains cf0cf1cf2cf3cf4cf5cf6cf7cf8cf9cfacfbcfccfcf0cf1cf2cf3cf4cf5cf6cf7cf8cf9cfacfbcfccfdcfecffdcfecffcf contains ef0ef1ef2ef3ef4ef5ef6ef7ef8ef9efaefbefcefdefeefef0ef1ef2ef3ef4ef5ef6ef7ef8ef9efaefbefcefdefeefffef
contains ec0ec1ec2ec3ec4ec5ec6ec7ec8ec9ecaecbeccecdecec0ec1ec2ec3ec4ec5ec6ec7ec8ec9ecaecbeccecdeceecfeecfec
contains cf0cf1cf2cf3cf4cf5cf6cf7cf8cf9cfacfbcfccfcf0cf1cf2cf3cf4cf5cf6cf7cf8cf9cfacfbcfccfdcfecffdcfecffcf
contains ef0ef1ef2ef3ef4ef5ef6ef7ef8ef9efaefbefcefdefeefef0ef1ef2ef3ef4ef5ef6ef7ef8ef9efaefbefcefdefeefffef