stify"> +2? +2; ? < span align = "justify"> 2 +2? +3; ? 2 +2? +4; ? 2 +2? +5; ? 2 +2? +6; ? 2 +3?; ? 2 +3 ? +1; ? 2 +3? +2; ? 2 +3? +3; ? 2 +3? +4; ? 2 +3? +5; ? 2 +3? +6; ? 2 +4?; ? 2 +4? +1; ? 2 +4? +2; ? 2 +4? +3; ? 2 +4? +4; ? 2 +4? +5; ? 2 +4? +6; ? 2 +5?; ? 2 +5? +1; ? 2 +5? + 2; ? 2
