Perform string manipulation using string functions Using C

# include <stdio.h>
# include <conio.h>
# include <string.h>
void main()
{
char str1[40], str2[40] ;
clrscr() ;
printf("Enter the first string : \n\n") ;
gets(str1) ;
printf("\nEnter the second string : \n\n") ;
gets(str2) ;
printf("\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- Length is : %d and %d", strlen(str1), strlen(str2)) ;
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- Uppercase is : %s and %s", strupr(str1), strupr(str2));
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- Lowercase is : %s and %s", strlwr(str1), strlwr(str2));
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- Reverse is : %s and %s", strrev(str1), strrev(str2)) ;
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- String copy is : %s ", strcpy(str1,str2));
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
printf("- Concatenation is : %s ", strcat(str1,str2));
printf("\n\nString 1 = %s & String 2 = %s ", str1, str2) ;
getch() ;
}

RUN 1 :
~~~~~~~
Enter the first string :
Anna
Enter the second string :
Madras
String 1 = Anna & String 2 = Madras - Length is : 4 and 6
String 1 = Anna & String 2 = Madras - Uppercase is : ANNA and MADRAS
String 1 = ANNA & String 2 = MADRAS - Lowercase is : anna and madras
String 1 = anna & String 2 = madras - Reverse is : anna and sardam
String 1 = anna & String 2 = sardam - String copy is : sardam
String 1= sardam & String 2= sardam - Concatenation is : sardamsardam
String 1 = sardamsardam & String 2 = sardam