I have you took 100 roubles

The task from Blonde: I have you picked up 100. Went to the store and lost them.

Met a friend of mine. Took her 50 rubles.

Bought 2 candy bars 10. I have left 30 rubles. I gave them to you. And still owes 70. And friend 50. A total of 120. Plus I have 2 chocolates.

A total of 140! Where 10 rubles???