var GET=(function(){function f(s){return new g(s);}function g(s){this._s=s.trim().split("\n");this._y=0;}g.prototype.a=function(f){var s=this._s, y=this._y, r;if(typeof s[y]==="string")s[y]=s[y].split(" ").reverse();r=s[y].pop();if(!s[y].length)this._y++;return f?r:+r;};g.prototype.l=function(f){var s=this._s[this._y++].split(" ");return f?s:s.map(a=>+a);};g.prototype.m=function(n,f){var r=this._s.slice(this._y,this._y+=n).map(a=>a.split(" "));return f?r:r.map(a=>a.map(a=>+a));};g.prototype.r=function(n,f){var r=this._s.slice(this._y,this._y+=n);return f?r:r.map(a=>+a);};return f;})();
var o=GET(require("fs").readFileSync("/dev/stdin","utf8"));

console.log(main());
function main(){
  var n = o.a();
  var a = o.l();
  var mx = 0, k;
  for(var i = 0; i < n; i++){
    if(Math.abs(mx) < Math.abs(a[i]))mx = a[i], k = i+1;
  }
  if(mx === 0)return 0;
  var ans = [];
  if(mx < 0){
    ans.push(k+" 1");
    ans.push(k+" 1");
    for(i = n-1; i > 0; i--){
      if(a[i] < 0){ans.push("1 "+(i+1)); ans.push("1 1");}
      else{ans.push("1 1"); ans.push("1 "+(i+1));}
    }
  }else{
    ans.push(k+" "+n);
    ans.push(k+" "+n);
    for(i = 0; i < n-1; i++){
      if(a[i] < 0){ans.push(n+" "+n); ans.push(n+" "+(i+1));}
      else{ans.push(n+" "+(i+1)); ans.push(n+" "+n);}
    }
  }
  console.log(2*n);
  return ans.join("\n");
}