C Program for leftrecursion

#include<stdio.h> 
#include<string.h> 
#define SIZE 10 

int main () { 
char non_terminal; 
char beta,alpha; 
int num; 
char production[10][SIZE]; 
int index=3; /* starting of the string following "->" */ 
printf("Enter Number of Production : "); 
scanf("%d",&num); 
printf("Enter the grammar as E->E-A :\n"); 
for(int i=0;i<num;i++){ 
scanf("%s",production[i]); 
} 
for(int i=0;i<num;i++){ 
printf("\nGRAMMAR : : : %s",production[i]); 
non_terminal=production[i][0]; 
if(non_terminal==production[i][index]) { 
alpha=production[i][index+1]; 
printf(" is left recursive.\n"); 
while(production[i][index]!=0 && production[i][index]!='|') 
index++; 
if(production[i][index]!=0) { 
beta=production[i][index+1]; 
printf("Grammar without left recursion:\n"); 
printf("%c->%c%c\'",non_terminal,beta,non_terminal);     
printf("\n%c\'->%c%c\'|E\n",non_terminal,alpha,non_terminal); 
} 
else 
printf(" can't be reduced\n"); 
} 
else 
printf(" is not left recursive.\n"); 
index=3; 
} 
} 

/*
Output------------------------------------------
aiktc@aiktc11 ~ $ gcc -std=c99 leftrecursion.c
aiktc@aiktc11 ~ $ ./a.out
Enter Number of Production : 2
Enter the grammar as E->E-A :
E->EA|A
A->AT|a

GRAMMAR : : : E->EA|A is left recursive.
Grammar without left recursion:
E->AE'
E'->AE'|E

GRAMMAR : : : A->AT|a is left recursive.
Grammar without left recursion:
A->aA'
A'->TA'|E
aiktc@aiktc11 ~ $
*/