Commands hard and AI dumby

trying to detect when a player clicks on a certain block (2 sandstone walls stacked ontop of eachother at cords -42 101 59 -42 102 59), clicks on the block with a carrot on a stick named Potato Peeler "cannot figure out how to name it Potato Peeler and not Potato_Peeler" after player clicks on either of the blocks with the potato peeler, gives player an item..... Ive got a scoreboard obj named 'rcdw' "right click ___ wall" and have got it saying hellow after each click Please help I'm loosing it over here attached is the 'organisim' im shaving off of