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2. kubus PQRS.TUVW
2. a. PQRS, TUVW, QRUV, PSTW, PQTU, SRVW
2.b. PQ, RS, PS, QR, TU, VW, TW, UV, PT, QU, SW, RV
2.c P, Q, R, S, T, U, V, W
3. kubus EFGH,IJKL
3a. EFGH, IJKL, EFIJ, HGKL, HEIK, FGJK
3b. EF, HG, EH, FG, IJ, KL, KJ, IL, LH, EI, FJ GK
3c. E,F,G,H,I,J,K,L,
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