Working loads acting on the columns are given below. Take net bearing capacity = 80 kN/m$^{3}$.

Load on columns C1, C3, C7, C9 = 700 kN

Load on columns C4, C6 = 900 kN

Load on columns C2, C8 = 800 kN

Load on column C5 = 1200 kN

Draw a neat sketch showing reinforcement details.