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calculează, folosind Suma Gauss:
S1 = 1+2+3+...+259
S2 = 27+28+29+...+450
S3 = 2+4+6+...+248
S4 = 40+42+44+...+500
S5 = 1+3+5+...+207
S6 = 31+33+35+...+309
S7 = 2+7+12+17+...+202​