Then Party A and Party B save less 30 yuan C ..
Then 134-30= 104 yuan is the deposit of Party A and Party B minus the deposit of 30 yuan and Party C.
The available deposits of C are
104 divided by 2=52 yuan.
B and C are cheaper than A, 34 yuan.
You can also buy one to save money.
134-34= 100
100 divided by 2=50 yuan.
Then b saves money to buy it
134-50-52=32 yuan
A saves money in 50 yuan, B saves money in 32 yuan and C saves money in 52 yuan.