diff --git a/calc.c b/calc.c
index 66408e2..93b7afc 100644
--- a/calc.c
+++ b/calc.c
@@ -11,7 +11,7 @@ int getop(char[]);
 void push(double);
 double pop(void);
 
-int main()
+int main()  // main function//
 {
 	int type;
 	double op2;
@@ -118,7 +118,7 @@ int getch(void)
 }
 
 
-void ungetch(int c)
+void ungetch(int c)  // function//
 {
 	if(bufp >= BUFSIZE)
 		printf("ungetch: toomany characters\n");
diff --git a/digit_count.c b/digit_count.c
index 813f7fa..4387bde 100644
--- a/digit_count.c
+++ b/digit_count.c
@@ -1,6 +1,6 @@
 #include <stdio.h>
 
-main()
+main() // main function starts//
 {
 	int c, i, nwhite, nother;
 	int ndigit[10];
@@ -9,7 +9,7 @@ main()
 	for(i = 0; i < 10; i++)
 		ndigit[i] = 0;
 
-	while ((c = getchar()) != EOF)
+	while ((c = getchar()) != EOF)  // while loop starts//
 		if(c >= '0' && c <= '9')
 			++ndigit[c-'0'];
 		else if (c == ' ' || c == '\n' || c == '\t')
@@ -20,5 +20,5 @@ main()
 	printf("digits =");
 	for(i = 0; i < 10; ++i)
 		printf(" %d", ndigit[i]);
-	printf(", whitespace = %d, other = %d\n", nwhite, nother);
+	printf(", whitespace = %d, other = %d\n", nwhite, nother); // printing result//
 }