this can be reset when it hits 35.
Using AND gates, by placing on the ABCD output of the counters. 1's counter, use output A and C into the input of a AND gate IC, plug the output of the AND into another input of the AND gate, on the output of 10's counter take the output A and B to a separate input Gate take that output and plug it into the input that the combind output AC 1's counter is going into.
I know kind of hard to understand even for me.
Simple:
1's counter out AC into input AND> take output to next AND gate over
10's counter out AB into opposite side input AND> take output to the front second Gate where AC out is going into.
PINs for working a AND reset:
1's) A pin 1, C pin 2, AB output pin 3>to input pin 4
10's) A pin 10, B pin 9, output pin 8>to input pin 5
Take pin 6 and wire it into the counters CLR pin 14 without ground. The AND gate IC should tie it low enough for logic to keep running untill both AND's are activated.