Xiaohong bought a story book with 4 yuan, bought a picture book with half of the remaining money, bought a pen and spent half of the remaining money plus 1 yuan, and finally left 4 yuan. How much is Xiao Hongyuan?
小红用4元钱买了一本故事书，又用剩下的钱的一半买了一本画册，买笔又用去了剩下的钱的一半多1元，最后剩下4元．小红原有多少钱？
<result>4</result>