I'm making one of those "wtf no S" posts

300-400

Even I can tell you that's not nearly enough, you would need about 300 minimum as a laner.

Here is how you get a S, you get a friend to go ADC, you supp. Pick the champ you need a S with as Support, you need to somehow make this lane work well. Get a good amount of CS. Should be a S rank.

10 cs per min is considered optimal.

so double what you had