The term rain cats and dogs is identified in base64 scheme by the sequence cmFpbiBjYXRzIGFuZCBkb2dz, while the MD5 signature is equal to ece83047148b23710733c2e6ee5ff49f. The ASCII encoding of rain cats and dogs in hexadecimal notation is 7261696e206361747320616e6420646f6773.