C program to compare two strings

#include <stdio.h>
#include <conio.h>
#include <string.h>
int main()
{
char str1[50], str2[50];
int i=0, len1=0, len2=0, same=0;
clrscr();
printf("\n Enter the first string : ");
gets(str1);
printf("\n Enter the second string : ");
gets(str2);
len1 = strlen(str1);
len2 = strlen(str2);
if(len1 == len2)
{
while(i<len1)
 {
if(str1[i] == str2[i])
 i++;
 else break;
}
if(i==len1)
 {
 same=1;
printf("\n The two strings are equal");
}
}
if(len1!=len2)
printf("\n The two strings are not equal");
if(same == 0)
{
if(str1[i]>str2[i])
printf("\n String 1 is greater than string 2");
else if(str1[i]<str2[i])
printf("\n String 2 is greater than string 1");
}
getch();
return 0;
}