Ключевые слова: accumulation, add, addendum, addition, algorithm analysis, arithmetic, blocks, chain, concept, consistency, consistent, continuation, contractual, development, economics, efforts, fulfill, gain, gradual, growing, growth, heading, help, increase, joint, mathematical notation, numbers, one, optimization, plus, power, probability, proceedings, process, progress, progression, row, sequence, sequential, serial, series, skill, step by step, strength, strengthening, success, sum, support, system, truth,