TASK DEFINITION: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
PROBLEM: 1, 22, ['3969', 'e', 'B', 't', 'G', '9783', 'F', '7655', '8287', 'j', 's', '4477', 'k', 'a', 'L', '419', '3975', 'X', '8205', 'f', '4253', '1477', 's']

SOLUTION: 3969eBtG9783F76558287js4477kaL4193975X8205f42531477

PROBLEM: 9, 19, ['8853', '5105', '8221', 'r', 'M', '2825', 'V', '6443', '6929', '1785', 'M', 's', '9271', 'L', 'r', '6183', '1977', 'V', 'r', '5283', 'A', 'o', '1221', 'R']

SOLUTION: 69291785Ms9271Lr61831977Vr

PROBLEM: 3, 8, ['F', '6435', '679', 'J', '2393', 'T', '3587', 'S', '5615', 'P', 'U', 'f', 'W', 'u', 'f', '9115', 's', 'X', 'G', 't', 'W', 'q', 'g', 'I', '5537', '5063']

SOLUTION:
679J2393T3587S