Consider the reactions:
1. \(NaCl+K_{2}Cr_{2}O_{7}+H_{2}SO_{4} \rightarrow A + ...\)
2. \(A + NaOH \rightarrow B + ...\)
3. \(B + H_{2}SO_{4}+H_{2}O_{2} \rightarrow C + ...\)
In the product 'C', X is the number of \(O_{2}^{2-}\) units, Y is the total number of oxygen atoms, and Z is the oxidation state of Cr. The value of \(X+Y+Z\) is__.