file1.txt OverWrite ?(Yes/[No]/All/Skip) 
file1.txt	- Melting  :  .
file1.txt	- Melting  :  o
file1.txt	- Melted  
file2-1.txt OverWrite ?(Yes/[No]/All/Skip) file2-2.txt OverWrite ?(Yes/[No]/All/Skip) 
file2-2.txt	- Melting  :  .
file2-2.txt	- Melting  :  o
file2-2.txt	- Melted  
file3.txt OverWrite ?(Yes/[No]/All/Skip) file4.txt OverWrite ?(Yes/[No]/All/Skip) 