#include<stdio.h>
    #include<conio.h>
    void main()
    {
        char a[21],b[21];
        int i;
        clrscr();
        printf("\n Please Give The STRING OF A : ");
        gets(a);

        flushall();
        printf("\n Please Give The STRING TO B : ");
        gets(b);


        i = strcmp(a, b);

        if(i < 0)
            printf("\nFIRST MISMATCHED CHARACTER IS %d NUMBER  LESS",i*-1);
        elseif (i > 0)
            printf("\nFIRST MISMATCHED CHARACTER IS %d NUMBER  HIGHER",i);
        else
            printf("both are same than \n");
        

        getch();
    }


*************************** OUTPUT *************************************

 Please Give The STRING OF A : MCA001

 Please Give The STRING TO B : MCa001

FIRST MISMATCHED CHARACTER IS 32 NUMBER  LESS


*****************************************************************************