public static void Main()
Console.Write("Input : ");
input = Console.ReadLine();
for(i=0; i<input.Length; i++)
if(input[i] =='a' || input[i]=='A' )
else if (input[i] == 'i' || input[i] == 'I')
else if (input[i] == 'u' || input[i] == 'U')
else if (input[i] == 'e' || input[i] == 'E')
else if (input[i] == 'o' || input[i] == 'O')
Console.WriteLine(" A : {0}", A);
Console.WriteLine(" I : {0}", B);
Console.WriteLine(" U : {0}", C);
Console.WriteLine(" E : {0}", D);
Console.WriteLine(" O : {0}", E);