diff --git a/aabb.c b/aabb.c
new file mode 100644
index 0000000..dc6a620
--- /dev/null
+++ b/aabb.c
@@ -0,0 +1,32 @@
+#include<stdio.h>
+int main()
+{
+	int i,j; char ch='A';
+	for(i=1;i<=5;i++)
+	{
+		for(j=5;j>=1;j--)
+		{
+			if(i+j>=6)
+			printf("%c",ch);
+			else
+			printf(" ");
+			
+		}
+		ch++;
+		printf("\n");
+	}
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+	
+}
diff --git a/abc.c b/abc.c
new file mode 100644
index 0000000..7161310
--- /dev/null
+++ b/abc.c
@@ -0,0 +1,24 @@
+#include<stdio.h>
+int main()
+{
+int i,j;
+for(i=1;i<=5;i++)
+{
+ for(j=1;j<=5;j++)
+ {
+ 	if(i+j<=6)
+ 	printf(" %c ",64+j);
+ 	else
+ 	printf(" ");
+ }
+ printf("\n");
+ }
+  
+ return 0;  
+   
+
+
+
+}
+	
+	
diff --git a/kanhaiya.c b/kanhaiya.c
new file mode 100644
index 0000000..9c70000
--- /dev/null
+++ b/kanhaiya.c
@@ -0,0 +1,10 @@
+#include<stdio.h>
+int main()
+{
+int a,b,c;
+printf("enter two numbers");
+scanf("%d%d",&a,&b);
+c=a+b;
+printf("sum=%d",c);
+return 0;
+}
\ No newline at end of file
diff --git a/patternc.c b/patternc.c
new file mode 100644
index 0000000..e5905ef
--- /dev/null
+++ b/patternc.c
@@ -0,0 +1,34 @@
+#include<stdio.h>
+int main()
+{
+	int i,j,x,y;
+	for(i=1;i<=5;i++)
+	{
+		for(j=1;j<=5;j++)
+		{
+			if(i+j<=5)
+			printf(" ");
+			else
+			printf("* ");
+	    }
+	    printf("\n");
+    }
+    for(x=1;x<=4;x++)
+    {
+    	for(y=4;y>=1;y--)
+    	{
+    		if(x+y<=5)
+    		printf(" *");
+    		else
+    		printf(" ");
+		}
+    	printf("\n");
+	}
+	
+	return 0;	
+	
+	
+	
+	
+	
+}
\ No newline at end of file