1. We have an arbitrary DNA sequence :

ctctggtgttcctttctctgtttttccgagggctgcgagcaaacgactagcctttttcgcgattatacgttctgaactttccctagcctggttttgaacacgcatgatttcctgttgggattttgctttttctagttttaatcctgcctctagtattgctaggttttcaagtaatagcgc gcgttgtgaaggaagcgtcctgggatcgtcgagtagtttctggacatccgcaatgtctttttgaaccgaacttaccgccgcatctctcttttgctctagtcttgcaacctctgcgctcgcttctttgttgattttggagagaccgccaaactcattcgtttcactcagtttgagctgagcaagagttaccgctgacttcttggtcgtggaaggatcgccttcagtaagcaccacttcgggtaatgatccatcagtatcagatttacctgtgggtcctgctccaagtttgtcggcgtcgaatttgtcgtcgtctgctttcaccgcgatgagtgctttgattctgtcccggatctctttgttggcaacattcgtttcggttaggccgtcggagcttattgggtctgagcttgagctaggtattgctaagaggagcttctctagctctgccttggtgatgtcatctcgttgtagttctcttctcaaagctgctgccgtgaggggaacgttccttccgttttgattctttatgacgccaagatcggcgttgtcaggtatgttctcaacagcaagtatggctagttgctgtcgttgctgtacttgggcacgggaggtggtgtcgcttgcttgggctagcgctctttgtgactctgcggttcgttctagcttgagtagatcttcctcccttttgatttgatcttctcttgcctggccaagcttccgctctagttcgagtatggagttccggcgtctgtctcgtatgcgttctagtcttgctacatcctcagcgcgtttttgcttgcagccggatagaatgcagaagtcatccgcccggtcatcaatctgtcgttgtagttcgtttatttggtcttgagcggctctaatctcacgctggctttctgcctcttctttgttgaagttttctgttgcttttttgagagcttctgtagccttggcgacatcgattacgggtgcaggtttgcttggcgcgggagcaggcctaagcgctagctctgcttgtttttctttgtctatattttgttggatggtttcgagggtgttgattttctgaacgatgatggactgtgctcttccagcgtcagagtcaaagcctatcttgtctagggctcgtcttgctgcgtcgaagtcgtttcgtagtagtgcgtctgctatcaatttctgttgcacaggattaagaccgttaccgcggacgaggacgttttcgttgatggattgtctgcttacggttgcgcgatcttgtagtctggaaagggtttgggcgttctggatggatagagcttgttgctgttgttgttctactgtggcttgggatagctgtcctagacggtcttgcagcaaggccttgtctctgctttggctcctgccaatggctgcttgtgcaccttcgaggtctcctgcttggatcttgccgagtatctgggctctttgggtctcagaaagacttctgtccgtttggatggatcgtaggagtatgagttcttgtctgtccttcttgcgatctgcagcttctaagttttctatggctgtcgtgtcacggaaaccggtaggtgcttgtgcggctaaggcctgtcgttctttgttggcggcatctatttgtacgagcaaactttctgcttcctgtcgattttgtctgtcttcggtgcgtgcgttttggattttttctcccagggcaccgaatcgtttttcactcaggtcagagcgtaccaggttgttgtttgtctcaaagaatcctccttcttcttccaggttctggaaggctttcttctggaggagttgtgatatgcttgacccgtctactttggccacggatagacgaccgttggatctgtgggaacgcgtaagatcgctttttctccttgtatttctacttcaaagaactcaaaccctttctggtccactgcgactcgacgatttacctgtatgcggtttgctgagcctaagggaatctgatgatcaaagaagccggtgttgtccacaccggttagttcagtctgggcgctcgttcttgccctaacgtcacttgcctgatccttcaagctagcaatgttagcgtcaacacctgctagttgtgtctctacggatggaatgacgggagtggatgttgtacttgcgcgactttgtgctgtagactcaataagatccttttgatcctggataaactcgtccactagtgaaggattcacaccacgtcgtttggcatcctgtgccaaccgatccagttgtctgttggcgtccgctccctgcccagaaataaggatgttggtagctgcattcacaaactgttcttcctcagcactaagcgagggaagtcccactgcagacggggtttgtgccgacgctgaagatgtcctatctcctgttccagaaagaccttctggagggggtttgatttctgttcctggtggtggcccggcagcgatctgtcgtgtgagctcattcagctgttgtagtttttgtgcctttgcggttgttagctccttaatgagtctttcttcgtctgtctctccatctccgatgatgtcatcaaagaagttacgtattctcgcaccggcttctgcctgtgttcgcttggtttgtgcaatatcttcgtccaattttgctatctgatctcggagttctgcctgggcagctaactttttcgcgtcaaccggtttctgctcgcgtccaccagtcgtctcggcctcaaaggcggcgtctgatcgcgcgcctgagacagctacacggggtgtctcagctacgggtggcagttccaacacgttggggtcgggcattttgtctagtttgggcacgactgctgagcggccgccggtgagggctaccacg

2. Take 2000 random samples from this sequence, of about 100150 bases.

3. Store these samples in an array.

4. Rebuild the original DNA sequence using these random samples.

What would be the main problem with the algorithm approach ?

The code can be implemented in python/java/c++