Run time error in my program

its a program to tell character is vowel or consonant.
when i run this program it shows runtime error!

Pls help me…

#include<stdio.h>
void main()
{
char ch;
printf(“Enter any alphabet”);
scanf("%c",&ch);
if(ch>=‘A’&&ch<=‘Z’)
{
if(ch==‘A’||ch==‘E’||ch==‘I’||ch==‘O’||ch==‘U’)
printf(“Vowel”);
else
printf(“Consonant”);
}
}

check out this code
there is no error basically, but when i copied your code the single and double quotes were not acting as there were suppose to do (eg: “dhjksd” it is not making it string).
look at this code
#include<stdio.h>

int main()

{

char ch;

printf("Enter any alphabet");

scanf("%c",&ch);

if(ch>=‘A’&&ch<=‘Z’||ch>=‘a’&&ch<=‘z’)

{

if(ch==‘A’||ch==‘E’||ch==‘I’||ch==‘O’||ch==‘U’||ch==‘a’||ch==‘b’||ch==‘i’||ch==‘o’||ch==‘u’)

printf(“Vowel”);

else

printf(“Consonant”);

}

return 0; 

}