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pub const IREP: [char; 4] = ['I', 'R', 'E', 'P']; pub const LVAR: [char; 4] = ['L', 'V', 'A', 'R']; pub const DBG: [char; 4] = ['D', 'B', 'G', '\0']; pub const END: [char; 4] = ['E', 'N', 'D', '\0'];