Write a program that accepts two strings from the user and prints the combination and the concatenation thereof.

Question

A sample run:
Enter a string: Good
Enter another string: day
The combination is dGoodaGoody
The concatenation is Goodday

Answer 1

a=input()
b=input()
print("Conact: "+a+b)

Answer 2

You can use strcat function function of string.h header file to concatenate two strings.
The strcat() function concatenates a source string to destination string and adds a null character at the end of destination.
strcat(destination, source);

Here is the sample C program to concatenate two string
http://www.techcrashcourse.com/2014/10/c-program-concatenate-strings.html
http://www.techcrashcourse.com/2015/08/string-h-c-standard-library-functions.html