import re
strings = ["AAA_POERAS::ZNCDAd_EROS_NOW_X_SHRIAPP_Z_DONTKNOW_J1_Z_SUITS_8907_11",
"BBB_POERAS::ZNCDAd_EROS_NOW_Q_SHRIAPP67_Y_DONTKNOW_J2_Y_THERE_MLA_WHICH_8906_86_25_01"]
for string in strings:
print(re.sub(r'(\_\d{1,2})+$', '', string))
aW1wb3J0IHJlCnN0cmluZ3MgPSBbIkFBQV9QT0VSQVM6OlpOQ0RBZF9FUk9TX05PV19YX1NIUklBUFBfWl9ET05US05PV19KMV9aX1NVSVRTXzg5MDdfMTEiLAoiQkJCX1BPRVJBUzo6Wk5DREFkX0VST1NfTk9XX1FfU0hSSUFQUDY3X1lfRE9OVEtOT1dfSjJfWV9USEVSRV9NTEFfV0hJQ0hfODkwNl84Nl8yNV8wMSJdCmZvciBzdHJpbmcgaW4gc3RyaW5nczoKICAgIHByaW50KHJlLnN1YihyJyhcX1xkezEsMn0pKyQnLCAnJywgc3RyaW5nKSk=