prompted string problems

I am writing a program that prompts the user for a string. This string will then have an extracted substing. I've written this code below but whenever I compile it It'll prompt the user for the string and then freeze up. I know my problem is with the way I am storing the initial string but can't find in my book how to do this. I'm new and yes this if for homework. I couldn't find help with this on any other postings. I just want to be pointed in the right way. Any help is appreciated. Thanks,Attachment 11114

If there's any whitespace in your inputted text it will foul things up. You'll have to use something like fgets() to get the string instead of scanf().

Also, copy / paste your code, NOT a screen-shot.
We can't copy your code without a lot of pointless effort to read your picture and manually type the code (that won't happen).

It should look like this

Code:

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int main ( ) {
    // code here
    return 0;
}

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