怎样用getchar函数读入两个字符给c1,c2？麻烦哪位编个程序给我！有劳！

忘了还有个要求。就是读入字符之后用putchar函数输出这两个字符。
有劳你编个完整的程序给我！先谢喽！

Hi buddy! I appreciate you help me learn the C language,but I can't bear with you insult.You need know i just learn the C language several days,and there is no one can offer help  around me . You think this qustion is so easy,actually,this program is so easy.At first,i also write the program just like you give me ,but i can see the result,so i doubt whether the program is right or not.but afterward,i kwow something is wrong when i input the word from the keyboard,it turn out The program is right. And now i think you should take back you word.But thanks anyway.