Eva would like to make a string of beads with her favorite colors so she went to a small shop to buy some beads. There were many colorful strings of beads. However the owner of the shop would only sell the strings in whole pieces. Hence Eva must check whether a string in the shop contains all the beads she needs. She now comes to you for help: if the answer is "Yes", please tell her the number of extra beads she has to buy; or if the answer is "No", please tell her the number of beads missing from the string. For the sake of simplicity, let's use the characters in the ranges [0-9], [a-z], and [A-Z] to represent the colors. For example, the string "YrR8RrY" is the one that Eva would like to make. Then the string "ppRYYGrrYBR2258" is okay since it contains all the necessary beads with 8 extra ones; yet the string "ppRYYGrrYB225" is not since there is no black bead and one less red bead. 输入描述: Each input file contains one test case. Each case gives in two lines the strings of no more than 1000 beads which belong to the shop owner and Eva, respectively. 输出描述: For each test case, print your answer in one line. If the answer is "Yes", then also output the number of extra beads Eva has to buy; or if the answer is "No", then also output the number of beads missing from the string. There must be exactly 1 space between the answer and the number. 输入例子: ppRYYGrrYBR2258YrR8RrY 输出例子: Yes 8