public static void Main()
string input1="Wipro Technologies";
foreach(char c in input1)
if(c =='A'||c=='E'||c =='I'||c=='O'||c =='U')
if(!(c =='A'||c=='E'||c =='I'||c=='O'||c =='U')&&(c>=65&&c<=90))
Console.WriteLine( s1.ToUpper());
Console.WriteLine( s1.ToLower());