diff --git a/functions in C b/functions in C
new file mode 100644
index 0000000..bcc2169
--- /dev/null
+++ b/functions in C	
@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+#define max(a,b) (a>b?a:b)
+
+int max_of_four(int a,int b,int c,int d){
+
+    return max(a,max(b,max(c,d)));
+}
+
+int main() {
+
+    int a, b, c, d;
+    scanf("%d %d %d %d", &a, &b, &c, &d);
+    int ans = max_of_four(a, b, c, d);
+    printf("%d", ans);
+    return 0;
+}