diff --git a/ex3/seq/check_all b/ex3/seq/check_all
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new mode 100755
diff --git a/ex3/seq/jacobi_oo_stl/Makefile b/ex3/seq/jacobi_oo_stl/Makefile
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diff --git a/ex7/gh_response.txt b/ex7/gh_response.txt
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index 0000000..2e69eb3
--- /dev/null
+++ b/ex7/gh_response.txt
@@ -0,0 +1,24 @@
+2: OK; rank used
+
+3:
+E5: DebugVector(): good solution
+
+E6: OK
+
+E7: MinMax: no global exchange [-0.5]
+
+E8: Allroallv: OK
+
+4:
+E9: only the initialization from template has been used, not the coordinates [-1]
+
+E10: 
+VecAccu(...int..) is correct (via double buffer)
+
+E11:
+Global_Nodes() correct
+
+
+E12: Ok
+
+E13: OK
diff --git a/ex7/task2.pdf b/ex7/task2.pdf
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diff --git a/ex7/task3.pdf b/ex7/task3.pdf
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diff --git a/ex7/task4.pdf b/ex7/task4.pdf
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