${[Fe{(CN)_6}]^{4 - }}$

${[Fe{(CN)_6}]^{3 - }}$

${[Ti{(CN)_6}]^{3 - }}$

${[Ni{(CN)_4}]^{2 - }}$

${[Co{(CN)_6}]^{3 - }}$

Among the given complexes, number of paramagnetic complexes is ____________.