S1-easy700k def---hard900k def
S2-easy3m def---hard4m def
S3-easy4m def---hard5m def
S4-easy5m def---hard6m def
S5-easy7m def---hard9m def
S6-eazy17m def--hard22m def
S7-easy20m def---hard26m def
S8-easy19m def---hard25m def
S9-easy24m def---hard31m def
S10-easy24m def---hard32m def
S11-easy36m def---hard47m def
S2-easy3m def---hard4m def
S3-easy4m def---hard5m def
S4-easy5m def---hard6m def
S5-easy7m def---hard9m def
S6-eazy17m def--hard22m def
S7-easy20m def---hard26m def
S8-easy19m def---hard25m def
S9-easy24m def---hard31m def
S10-easy24m def---hard32m def
S11-easy36m def---hard47m def