#include<stdio.h>
int main()
{
int a =10, b =20;
if(a<b)
{
printf("a is less than b\n");
}
else{
printf("b is greater than a\n");
}
int c=10, d=10;
if(c==d){printf("c and d both are equal\n");}
else
{printf("c and d both are not equal\n");}
if(a!=b){printf("a and b are not equal\n");}
else
{printf("a and b both are equal\n");}
return 0;
}