Intro นะคับ
C
1[--------------------------------1-----------0----
2[---1------1----3----1----------------1-------------1
3[------0-----------------0---------0------------0-------0
4[----------------------------2--------------------
5[---3--------------------------------------------
6[------------------------------------------------
Am
1[---------------------------------3--------------------0-----1----
2[------------1---3---1----------------1----3-----------------
3[-------2----------------2-------------2----2--------
4[--