step3 ![image](https://hackmd.io/_uploads/BJxRpoi1EWe.png) step4 ![image](https://hackmd.io/_uploads/H1dLxnk4-e.png) ![image](https://hackmd.io/_uploads/Hy4uU6kV-l.png) ![image](https://hackmd.io/_uploads/S1xTUTJNbx.png) step5 E4B04 ![image](https://hackmd.io/_uploads/BynI36k4Zg.png) ![image](https://hackmd.io/_uploads/rk_LcAyVWg.png) GE107 ![image](https://hackmd.io/_uploads/BJaEApk4Zg.png) ![image](https://hackmd.io/_uploads/Sy25jCk4bx.png) E4A48 ![image](https://hackmd.io/_uploads/ry7T41g4-x.png) ![image](https://hackmd.io/_uploads/rkS7vJeVbg.png) E4B16 ![image](https://hackmd.io/_uploads/B1xIQye4bl.png) ![image](https://hackmd.io/_uploads/rkxzLyeN-e.png) E4A49 ![image](https://hackmd.io/_uploads/BkGrMJlEWx.png) ![image](https://hackmd.io/_uploads/HkT7BkgVWx.png)