Study of Λ 12 C and Λ 56 Fe hypernuclei by (π+, K+) reactions at the KEK 12GeV PShypernuclei by (π+, K+) reactions at the KEK 12GeV PS@@@Исследование rиперядер Λ 12 C и Λ 56 Fe с помошью (π+, K+) реакций в KEK 12 ГзB PSс помошью (π+, K+) реакций в KEK 12 ГзB PS