#insgtram_auto_like_pic

javascript:var inputs = document.getElementsByClassName('_ebwb5 _1tv0k _345gm coreSpriteHeartOpen');
for(var i=0; i<inputs.length;i++) { inputs[i].click(); }
----------------or
javascript:
function d(){
   var el = document.getElementsByClassName('_ebwb5 _1tv0k _345gm coreSpriteHeartOpen');
   if (el.length > 0) {
      el[el.length-1].click();
      setTimeout(d,10);
   }
}
d();