Здравейте.Може ли някой да ми каже къде греша.Моят код-

https://pastebin.com/ZJgxDSWB

Условието:

5.   * Array Manipulator

Write a program that reads an array of integers from the console and set of commands and executes them over the array. The commands are as follows:

• add <index> <element> – adds element at the specified index (elements right from this position inclusively are shifted to the right).
• <index> <element 1> <element 2> … <element n> – adds a set of elements at the specified index.
• contains <element> – prints the index of the first occurrence of the specified element (if exists) in the array or -1 if the element is not found.
• remove <index> – removes the element at the specified index.
• shift <positions> – shifts every element of the array the number of positions to the left (with rotation).
  • For example, [1, 2, 3, 4, 5] -> shift 2 -> [3, 4, 5, 1, 2]
• – sums the elements in the array by pairs (first + second, third + fourth, …).
  • For example, [1, 2, 4, 5, 6, 7, 8] -> [3, 9, 13, 8].
• print – stop receiving more commands and print the last state of the array.