Task: Program Execution
Input (English): E, 5573, 7669, 6989, a, 731, 7747, U, 6599, 549, d, 6193, y, 4005, 7097, C, 5707, 3791, 9671
Output (English): 5, 5573, 7669, 6989, 1, 731, 7747, 21, 6599, 549, 4, 6193, 25, 4005, 7097, 3, 5707, 3791, 9671