diff --git a/Sheet4/Ex3.m b/Sheet4/Ex3.m
index f2ac85f..b43e76a 100644
--- a/Sheet4/Ex3.m
+++ b/Sheet4/Ex3.m
@@ -1,5 +1,5 @@
 clear; close all; clc;
-p = 70;
+p = -70;
 Nvals = [10 20 30 40 70];
 
 figure; hold on; box on;
diff --git a/Sheet5/code_Sheet5.pdf b/Sheet5/code_Sheet5.pdf
new file mode 100644
index 0000000..6aa7ee2
Binary files /dev/null and b/Sheet5/code_Sheet5.pdf differ
diff --git a/Sheet5/gh_response.txt b/Sheet5/gh_response.txt
new file mode 100644
index 0000000..d20576d
--- /dev/null
+++ b/Sheet5/gh_response.txt
@@ -0,0 +1,34 @@
+
+Summery of your results?!
+
+g++ -O3 -fopenmp  mainEx1.cpp mylib.cpp -o dotprod
+I added Makefile,  CLANG_default.mk GCC_default.mk to your repository
+
+Linux: Using g++
+> make run EX=Ex5             
+Using clang++
+> make run EX=Ex5 COMPILER=CLANG_
+
+
+1:
+no scheduling tested
+no functionality as reduction_append implemented
+
+2: mainEx2.cpp
+no parallelization at all. neighter OpenMP nor C++ execution policies
+
+3: mainEx3.cpp
+nested parallelization in count_goldbach(), single_goldbach()
+Did that pay off?!
+
+4:
+Try 
+collapse(2) 
+in bench_funcs.cpp:75
+(faster in my code for Mat-Mat-Mult)
+
+5:
+Why not using my provided 2D FEM code? That was already required in exercise 3.
+Code only 1D FEM whioch is quite simple to parallelize because of the very simple matrix pattern.
+jacobi_par_parallel()
+build_fem_system_atomic()  OK