An assembly line requires two components: gadjits and widjits. Gadjits are produced by center $1$ and widjts are produced by gadjits and $2$ widjits. The daily production quota on the assembly line is $850$ jit$-$togethers. The container for gadjits holds $70$ units. The policy variable for center $1$ is set at $0\mathrm{.}03.$ The average waiting time for a container of gadjits is $0\mathrm{.}07$ day, and $0\mathrm{.}07$ day is needed to produce a container. The container for widjits holds $45$ units, and the policy variable for center $2$ is $0\mathrm{.}03.$ The average waiting time per container of widjits is $0\mathrm{.}17$ day, and the time required to process a container is $0\mathrm{.}21$ day.

a$.$ How many containers are needed for gadjits? containers. $($Enter your response rounded up to the next whole number.$)$