how to remove first 3 characters from nsstring?

    NSString *str1 = @"A. rahul VyAs";

    NSString *newStr1 = [str1 substringWithRange:NSMakeRange(3, [str1 length]-3)];

    

    NSLog(@"new str1 is %@",newStr1);

    

    NSString *str = @"A. rahul VyAs";

    NSString *newStr = [str substringFromIndex:3];

    NSLog(@"new str %@",newStr);

output :new str1 is rahul VyAs