diff --git a/12 b/12
new file mode 100644
index 0000000..fc8a5b6
--- /dev/null
+++ b/12
@@ -0,0 +1,36 @@
+class Solution {
+  public:
+    bool stringStack(string &pat, string &tar) {
+        // code here
+          int n= pat.size();
+              int m= tar.size();
+              
+              int i=n-1;
+              int j=m-1;
+              int count =0;
+              while (i>=0 && j>=0){
+                     
+                      if (pat[i]==tar[j]){
+                            if (count%2==0) {
+                                j--;
+                                count=0;
+                                i--;
+                            }
+                            else{
+                                 i--;
+                                 count++;
+                         
+                            }
+                            
+                      }
+                          
+                      else{
+                           i--; 
+                           count++;
+                      }
+              }
+              if (j<0) return true;
+              else return false;
+    }
+};
+