He was there. There were 58 sticks. He told Cheekoo there would only be 52, but he lied to test him... Though surprise to say, Iszdope certainly wasn't surprised when Cheekoo picked up all the sticks or when he noticed there were actually 58... Without even counting! Before Cheekoo could even grab a stick, he was like, "that's not 52 sticks. That's clearly 58" before picking them all up in one go. Iszdope was proud, but mostly contempt. He knew Cheekoo would succeed. There was never a doubt in his mind.