j={0,1}
a=-0.5+j*0.5* sqrt (3)
U1=200;         U2=U1*a*a;          U3=U1*a
ZR=100;         ZL=j*100;           ZC=-j*100
I1=U1/ZR;       I2=U2/(ZR+ZL);      I3=U3/ZC
IN=I1+I2+I3
