old_contents: exports.run = async (client, message, [x, y, z]) => {
      if (!x || !y) { return message.reply("You want to subtract nothing to one number? You don't need to call me for it, baka!"); }
      if (!z) { z = 0; }
  
      message.channel.send(`Total: ${Number(x - y - z)}`);
  };
    
  exports.conf = {
    enabled: true,
    runIn: ["text"],
    aliases: [],
    permLevel: 0,
    botPerms: [],
    requiredFuncs: [],
  };
    
  exports.help = {
    name: "subtract",
    description: "Subtract up to three numbers together. Note: (X-Y-Z)",
    usage: "[x:int] [y:int] [z:int]",
    usageDelim: " ",
  };
  
new_contents: exports.run = async (client, message, [xa, ya, za]) => {
    var x = client.funcs.constantMath(client, message, xa);
    var y = client.funcs.constantMath(client, message, ya);
  
    if (!za) { 
      var z = 0; 
    } else { 
      var z = client.funcs.constantMath(client, message, za); 
    }
  
    if ((x === null) || (y === null) || (z === null)) { 
      return message.reply("You are trying to add things that aren't numbers or imaginary, baka!"); 
    }
  
    message.channel.send(`Total: ${x - y - z}`);
  };
    
  exports.conf = {
    enabled: true,
    runIn: ["text"],
    aliases: [],
    permLevel: 0,
    botPerms: [],
    requiredFuncs: [],
  };
    
  exports.help = {
    name: "subtract",
    description: "Subtract up to three numbers together. Note: (X-Y-Z)",
    usage: "[xa:str] [ya:str] [za:str]",
    usageDelim: " ",
  };
  
subject: Update subtract.js