parameter int;
storage unit;
return int;
code {CAR;                      # Get the parameter
      PUSH int 1;               # We're adding 1, so we need to put 1 on the stack
      ADD;                      # Add the two numbers
      UNIT;                     # We need to put the storage value on the stack
      SWAP;                     # The values must be rearranged to match the return calling convention
      PAIR}                     # Create the end value