Question: User: c(703)=142
1. The problem states that $c(703) = 142$.
2. This means the function $c$ evaluated at $703$ equals $142$.
3. Since no further instructions or questions are given, this is simply a function value statement.
4. If you want to find $c(x)$ for other values or solve for $x$ given $c(x)$, please provide more information.