A decoding circuit and method for improving error correction capability using a stuffing byte, in which in the decoding method, an input data packet is decoded. The documents are compared at both line and character levels. The spring is configured to have a first coil which defines a first helix having a central axis, and the spring is wound so that the central axis defines a second helix. A resist composition comprising a fluoropolymer which is a fluoropolymer having repeating units formed by cyclopolymerization of a fluorinated diene represented by the formula and which has blocked acidic groups as Q, an acid-generating compound which generates an acid under irradiation with light, and an organic solvent :.