t_mcv_1=t1,=t_mcv_2=t2,=t_mcv_3=t3
t_mcv_1=t1,=t_mcv_3=t3,=t_mcv_2=t2
t_mcv_2=t2,=t_mcv_1=t1,=t_mcv_3=t3
t_mcv_2=t2,=t_mcv_3=t3,=t_mcv_1=t1
t_mcv_3=t3,=t_mcv_1=t1,=t_mcv_2=t2
t_mcv_3=t3,=t_mcv_2=t2,=t_mcv_1=t1