I want to set the array of screening out the following List are
With a List in a List or array, contain inside the string started a character with the same name together

[0] "0-0.997808-129.505-574.997" string
[1] "0-0.834536-133.682-576.253" string
[2] "0-0.78879-127.089-470.138" string
[3] "3-0.999923-128.026-372.011" string
[4] "3-0.971624-130.923-624.68" string
[5] "3-0.930741-131.361-673.857" string
[6] "3-0.997603-129.499-622.998" string
[7] "3-0.973133-126.611-370.273" string
[8] "3-0.96854-130.185-672.209" string
[9] "3-0.811554-132.063-672.291" string
[10] "3-0.806595-128.451-370.274" string
[11] "4-0.996551-130.501-725.995" string
[12] "6-0.999169-126.992-217.003" string
[13] "H - 0.999812-126.027-266.998" string
[14] "H - 0.945102-129.915-272.105" string
[15] "H - 0.999832-126.029-267.998" string
[16] "H - 0.945103-129.901-271.115" string
[17] "K - 0.997638-126.493-323.999" string
[18] "K - 0.999363-126.997-323.998" string
[19] "L - 0.998948-127.005-419.999" string
[20] "P - 0.991264-124.511-110.497" string
[21] "Q - 0.998286-126.499-164.006" string
[22] "Q - 0.931788-129.968-469.945" string
[23] "Q - 0.805058-126.147-165.901" string
[24] "Q - 0.999116-129.994-469.001" string
[25] "Q - 0.850048-126.412-163.124" string
[26] "V - 0.996621-127.499-522" string


Screening so

[0] "0-0.997808-129.505-574.997" string
"0-0.834536-133.682-576.253" string
"0-0.78879-127.089-470.138" string
[1] "3-0.999923-128.026-372.011" string
"3-0.971624-130.923-624.68" string
"3-0.930741-131.361-673.857" string
"3-0.997603-129.499-622.998" string
"3-0.973133-126.611-370.273" string
"3-0.96854-130.185-672.209" string
"3-0.811554-132.063-672.291" string
"3-0.806595-128.451-370.274" string
[2] "4-0.996551-130.501-725.995" string
[3] "6-0.999169-126.992-217.003" string
[4] "H - 0.999812-126.027-266.998" string
"H - 0.945102-129.915-272.105" string
"H - 0.999832-126.029-267.998" string
"H - 0.945103-129.901-271.115" string
[5] "K - 0.997638-126.493-323.999" string
"K - 0.999363-126.997-323.998" string
[6] "L - 0.998948-127.005-419.999" string
[7] "P - 0.991264-124.511-110.497" string
[8] "Q - 0.998286-126.499-164.006" string
"Q - 0.931788-129.968-469.945" string
"Q - 0.805058-126.147-165.901" string
"Q - 0.999116-129.994-469.001" string
"Q - 0.850048-126.412-163.124" string
[9] "V - 0.996621-127.499-522" string