Position by position , the values in the first and second groups of part 1 are
the sums of the values in the 7 groups of the first and second subparts of part
2 , respectively. Namely,
\[ P_{11j} = \sum\limits_{i=1}^{7} P_{2ij}\;\;\;\;for\;all\;j=(1,...,5)\]
\[ P_{12j} = \sum\limits_{i=8}^{14} P_{2ij}\;\;\;\;for\;all\;j=(1,...,5) \]
(There is an error of 2 in 1 digit and 1 broken cord. )