I want to sort this as it is in book contents page, data is as follows : data assignment2; infile cards; input var $ 30.; cards; Table_1_Contents Table_2_Introduction Table_3_History1 Table_4_History2 Table_5_History3 Table_6_History4 Table_7_History5 Table_8_History6 Table_8_History7 Table_10_History8 Table_11_History9 Table_12_History10 Table_13_Appendix Table_1A_Foreword Table_1B_Preface Table_1C_Acknowledgments Table_13A_AppendixA Table_13B_AppendixB Table_13C_AppendixC Table_2A_Prologue Table_14_Notes Table_15_Glossary Table_16_References Table_17_Index ; Expected output should be: Table_1_Contents Table_1A_ Table_1B_ Table_1C_ Table_2_ Table_2A_ Table_2B_ Table_2C_ Table_3_ Table_2A_ ......... like that ; I hope you understand what I want. Thanks you.
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