A method for constructing a low-density parity-check code using a structured base parity check matrix with permutation matrix, pseudo-permutation matrix, or zero matrix as constituent sub-matrices; and expanding the structured base parity check matrix into an expanded parity check matrix. An idle load is applied to the fuel cell when the cell temperature is between about normal operating temperature and a transition temperature, and fuel and oxidizer are supplied to the fuel cell commensurate with the power delivered to the idle load. 1 \u03bcm or less and a volume particle size distribution width index SD satisfying the following Expression which are measured by a dynamic light-scattering method in the coating liquid for forming an undercoat layer,0. The invention further relates to the inbred and hybrid genetic complements of plants of variety I796483.